Sorry you felt being abused or quitting were the only options. Strikes me as a false dichotomy, but, hey, don't know the particulars of your unique situation. But for others out there: your skill are highly valuable, others will pay for them, your advisor needs people with your skills, you have leverage. At least, try speaking up for yourself. Hell, organize. https://en.wikipedia.org/wiki/Graduate_student_employee_unio...

I stuck it out trying to fix bad culture for a year last year. My mom had good advice: it’s really hard to change an established culture, impossible without support from the top.

I learned a lot being a squeaky wheel, but I didn’t change the culture in any meaningful way beyond getting us a lunch room.