Ok, to focus on one aspect of this, because this subject was brought up...
In the way we live our lives sexually with others...
1) Would you ever intentionally choose to have sex (if you are a male) with a female knowing that she could become pregnant, and knowing her and the circumstances, knowing that she would likely have your son or daughter killed by having an abortion? Again just because sex is fun?
A child could die?
And/Or
2) Would you ever intentionally have sex with another person knowing that you could give them, or they could give you, a potentially deadly virus like AIDS? Just because sex is fun?
You or your partner could be seriously injured, or die.
So, in this case, would you be willing to risk the serious injury or the death of someone else or even yourself just so you can have a very brief pleasurable sensation from your nerve endings.