WHY would anyone become a Catholic?

The horrors that are unveiling almost daily are unbelieveable horrific. Nuns murdering and torturing children at an orphanage. Who ARE these animals and where did they come from? Is the Catholic church the pinnacle of an evil, twisted, sadistic, perverted religion?
The more that comes to light, the sicker I get at the thought that if my mom had her way my son would have gone into the priesthood. Then I just thought she was crazy. Now the idea makes me want to vomit.