ian does not have anywhere near as hard a time. pissing off minerva and standing up to her gets you to fuck her, or gets you a chance at having your work directly put to seymour. standing up to her, suddenly ian is able to totally intelligently reverse her blackmail in a huge gotcha moment. rejecting holly doesn't result in her ignoring you coldly at work - on the contrary, she still helps you and hangs around you.
if you reject robert, he treats you differently at work and you get fired (if you suck his cock, he manages to help you keep your job).
if you reject seymour early, he uses his political clout and connections to stop galleries and photographers from working with you to coerce you into sexually humiliating yourself for him.
it's more than just 'your choices are on you'. that's the most smooth-brained take i've ever heard on this forum, and that's saying something.