I worked as a contractor at five or six Fortune 500 companies and they are not treating contractors well... Wells Fargo is not different.
Each company their own fairly refined way of making you feel like you are second class citizen.
What I’ve seen from my humble experience is that Wells Fargo employees act like they own the company and they just hired a contractor as a slave to work for their needs because no one will eliminate a FTE position.
Often FTEs have a company hosted private parties where they celebrate the hard work of contractors but they wont and sometimes they cannot invite them.