A company requiring you to be decent with your fellow coworkers is not discriminating against you.
On the long term, even if you are the most creative person at your company. If you don’t share your knowledge, get recent hires up to speed by sharing knowledge, you are less valuable.
I don’t think it would je necessary to specify it but, our jobs (be it developer, graphic designers, QA, etc) are already fairly individual and introverted job where asynchronous communication is pretty much the norm for the most part. It’s not like you have to spend 80% of your time talking and interacting.
If you look at sports for instance a quarterback like Tom Brady is able to throw so many completed passes because (1) somebody was in the right place to receive the pass, (2) other players kept the defense away, and (3) the receiver actually caught the pass.
Being decent is a prerequisite but it's really a matter of defining success in terms of the success of the team as opposed to just yours even if you are labeled an "individual contributor".
You don't have to be an asshole to be creative
edit: To be perfectly clear, I'm not accusing or disparaging the poster. I'm stating a general principle
Retrospectively Jack Kirby thought it wasn't very fair that Stan Lee hogged the credit but if you look at books that Kirby did by himself like
https://en.wikipedia.org/wiki/OMAC_(Buddy_Blank)
you'd see that Kirby was great at drawing and scenarios but he was nowhere near as good at Lee at wordsmithing.