she wouldn't, the goddess of beauty isn't going to look like anything except gorgeous. but athena...
the main thing is that asterion is in a long ass borrowed time already. it'd be against the laws of mortality for him to be free from the hotel and alive aswell. as long as he is in the hotel, he can't be free. at best, there could be put a contract in place that the current master's death would release asterion. granted, i'm assuming the rules here. with this scenario, life and freedom should be in conflict. it's one or the other.