Well, I've known this guy since he was 12.
He did
not sleep with anyone to get to the top of the profession, and he has turned down quite a few assignments he didn't feel comfortable with the nudity, sexual content, or whatever.
Like anything else, modeling takes the right mix of talent, work ethic, and people skills. Beauty may make people want to take a look at you, but you have to be able to be real, alive, intelligent, and interesting in front of a camera. You have to be able to deal with long hours, last minute changes, and weeks away from family and friends. You need the personal discipline to stay creative when you are exhausted and all the director can say is that she wants "something different". You have to grab food where you can - but stay on a strict diet and exercise routine. You have to be able to build your own personal support system.
Are there some low-life agents, photographers, creative directors who feel they can treat models like their own personal toys? Yes. But, let's be real - you can find sexual harassment whether you work at an insurance company or a bagel shop. There's a cost for standing by your ethics in any career.
So, if you want to model, then start hanging out with rising photographers and directors. There is always an opening at the amateur level for someone who has some talent and will work for free (but insist on getting prints to build up your portfolio).
Your parents don't have to worry about the nasty New York modeling agencies knocking at your door. They won't. Not until you have a body of work you can show. And if you ca get to that point you will have demonstrated to all that you are serious about your work and expect the same from your creative partners.
One last note -
never pay to be taken on by a modeling agency. Those are scams. A legit agency will invest in
you, because they know you are going to earn them a lot of money.