This is why "social engineering" gets messy. The Founding Fathers would have been appalled that we engage in any form of "social engineering" like financial rewards for being married. But alas we are there now and I doubt we can untangle the mess without a total overhaul of the system and I fear for that to come about there will be a catastrophic collapse of the whole shebang first.
You’re right.
Sadly, the right is as likely to favor social engineering as the left; we just disagree with them on what we use it for.