Depressed by slutty girls?

I went on chatroulette tonight, and I got matched up with this girl and two guys from texas, the two guys were having with the girl (who was extremely beautiful). It was like come to life and it shocked me in a way I feared wasn't possible. She was just having a fun time, she was talking (screaming rather) to me through the mic as she was getting f'd by these two guys, who I could tell I didnt like just from watching them. Then they stood up and they did more ual things, she was completely naked, didn't have a care in the world, but the guys were just horny and wanted and they were getting it. I don't think disgust is the right word but it shocked me in a very depressing way and afterwards I was feeling very down about this. I felt so bad that a girl who looked to have so much potential was just f''cking these two retards, it really hurt me for some reason. This will sound really melodramatic but it actually made me cry later, im not religious or prude at all, not really sheltered, and im a 17 year old male. I guess i just dont like the thought of girls not being cly and guys not being reserved gentlemen. Do you think im being ridiculous?