How wrong would it be if I tell my new roommates to pay higher rent than I do.
Well it sounds wrong. Is it reasonable to ask your roommates to pay a higher rent than you?
I don't care whether they can afford to pay this rent.
Making your roommates pay more than you on your apartment is unfair and unjustified. Consider their financial position and how you would want to be treated if you were in their shoes.
I think it's a great way to have control over my new roommates.
You won't be able to maintain any control over them once they find out about your unfair rent expectation. They'll be angry about paying the extra rent, and probably start looking for a new place to live.