Suppose you are a decent developer and you are working at Oracle.
You know who you are working with are lowlifes and lazy a--holes.... country clubbers, working 15-20 hour weeks.... sadistic, sociopathic, weirdo managers with thugs/lackeys screwing people over at their manager's direction.... junior-high kids just having fun messing with people.... older people who's skills no longer exist and they have no intention of developing any new skills.... people just waiting for their payoff in the form of a severance package..... etc, etc, etc.
All of these people look at you and assume you are doing the same things they are. You might be trying to really build great code, you might be paying attention to customers needs, you might be doing really, really great work.
But, when you demo what you have done, you are demoing to the scum and lowlifes that surround you. What do you think those people think of you?
Most will assume you are doing the same things they are. Maybe you tricked someone else into writing your great code? Maybe you copied it from somewhere? Maybe you've got a friend on the outside who you got it from? Maybe it's all fake? Maybe you think you are "so smart" and you need to be taken down a peg.
This is what these people are thinking, because it's who they are.
In this environment, it is so easy for people like that to undermine anything you are doing, by making up lies and spreading them around. People who resent you, will willingly spread lies about you. People who don't understand the amount of work and effort it took for you to do what you did, will belittle it, and make it seem like you did nothing.
The upper management has no idea. They have no technical knowledge or understanding about anything you are doing. Upper level management has no clue how anything is done and they trust the yes-men under them to tell them what they need to know. They sit inside a pool of corrupt managers who would lie at the drop of a hat to protect themselves and whoever their yes-men are.
You cannot succeed at Oracle. There is no way to do that. It will always be assumed that there is something wrong with you, something corrupt about what you are doing. No matter what you do, you swim in this corrupt sea of a--holes with their own agendas and report to corrupt or clueless managers who literally have no idea what you are doing.
I came into Oracle from an acquisition and was placed in an Oracle group that corresponded to my skill set. I thought that my skills would be appreciated, because the people I worked with, clearly were not able to do the work. The manager was incompetent. But, I still thought they would be very happy to have someone who could do the work.
They were not.
I was systematically isolated by the management, lies were made up and circulated about me. Even some people who were behind me originally, were eventually swayed to believe things that were not true.
At the time that I left, I connected with a couple of people in another group that I had been working with. I was shocked when I received an email from them saying that they were completely isolated. That they only spoke to one another and no one else. I had noticed their manager was extremely intimidating. Often yelling at employees in his group.
My encounters with support and product marketing were very similar. Support people were very negative and insulting..... I received and fixed problems from SRs... I would say, I'll fix this right away and from the support person I would get a sarcastic "Oh, yeah, sure you will".
From marketing, I got comments like "So, you think you're pretty smart, huh". Sarcasm abounds. The reality is that the marketing people are largely incompetent, the support people have been let down over and over by other developers. The expectations are so low, that anyone actually being responsible and doing good work is simply attacked, because of the expectation that you are just one of the lowlifes and scum who would work at Oracle.
The thing is that, if you are honestly working hard, there is no way to succeed at Oracle. The management is corrupt, the people are jealous and will lie, cheat and steal to get rid of anyone honestly doing work.
And within Oracle, there is so much corruption, that whatever anyone makes up about you, it will seem like that is the truth to anyone listening. After all, what would an honest person be doing at Oracle?
I worked for a manager at the end, who I believe was a manager I interviewed with at another company years before. I think that he recognized me, although I didn't recognize him at first. During this interview years ago, this manager tried to convince me to cheat the recruiter that had found me. He told me to "just forget" about the recruiter. I did not bother to consider the offer from him, I'm not a dishonest person and I don't work for dishonest people. This manager, though, has been promoted twice at Oracle.
If you are coming in from AWS to save the company, you will not be appreciated for your skill set. You are going to work in an absolute swamp. Everyone will just wonder "what's wrong with you?" and any lies that anyone cares to spread will be believed over you. The people at Oracle who are there before you, are networked together. They will believe their friends, not you.
There is no room at Oracle for an honest person, doing real work. There is no way out of this. The slow pace of layoffs will never clear out a large enough space to fill with a large enough group of honest people. LE cares more about his immediate personal finances and staying below the WARN limits to pretend that layoffs are not happening. No major changes will be possible in that environment.
You can't change a company the size of Oracle, with a handful of people changing.
Don't waste your time at Oracle. The scum will assume that you are scum, too, otherwise, why would you be there working with them?