In my opinion...
This whole idea of "purity" and "saving yourself for the one" is nothing more than terms and conditions of a business contract because marriage is a business contract itself.
It's also a power ploy by the ones in charge. People don't realize how much morals, values, and ethics can be used as a power ploy.
I personally think it has caused a complex in people when it comes to sex. A love/hate relationship of sex. We love watching it, having it, and talking about it but, feel guilty/ashamed about it.
That whole purity crap is what causes rape, molestation victims to be shamed (or even killed) and it causes young people to believe something is wrong with them because their natural biological urges are waking up during puberty.
Yeah, you can be a virgin but, still be corrupt and IMPURE because you might be a liar, thief, manipulator, etc;...
I guess the point I'm trying to make is this: There is way more in this world causing problems than consensual sex between consensual adults.