I never understood worrying about what's on my fellow classmate's plate. I take my exam. I do the best that I can. If I get a B, I get a B. If i get an A, then yay. I know I didn't lose a shade of a grade because a few people got extra time through accommodation. I lost a shade of a grade because I screwed up. There's no guarantee I don't screw up even if the prof gave me time immemorial.
Legit or illegitimate accommodation doesn't bother me. I'd rather the person who actually needs accommodation get it even if five others are "cheating" the system. It doesn't and shouldn't affect me. Just focus on yourself.