Earlier quoted context omitted.
It doesn't actually benefit anyone to convince people that sex outside of marriage is bad unless it really is is bad. In fact, it's a huge hedonic loss for everyone. It doesn't even help the political classes, because as rich high status men, they are prevented from having the extramarital sex which comes easily to them (or at least they must hide it). However, it's in the direct benefit of perverts and sex freaks to…
Your argument is invalid because there are practically no scientists (social or otherwise) coming out against premarital sex in modern societies with adequate screening against STDs and responsible use of contraception. Honestly, sex outside of marriage probably was bad in the medieval society where the Roman Catholic Church pushed that doctrine on all of us. It wasn't until the invention of reliable birth control in…
It doesn't actually benefit anyone to convince people that anthropogenic climate change exists unless anthropogenic climate change actually exists. In fact, it's a huge pain in the ass for everyone...It doesn't even help the political classes...
Incidentally, scientific communities have gotten behind theories with little evidence for political or religious purposes: Lysenkoism and various eugenic theories, for example.