Because he stands between the protagonist and her goal. Creon is the force that Antigone goes up against. Hes the kind of antagonist that's really stupid and is not well-liked. He treats Antigone badly.
Yes I would've, Harriet Tubman risked being caught by slave hunters each time she went to the south, which was 19 times. She ended up helping about 300 slaves make it to the north so they could be free.