Heck we already have that in a unofficial fashion. The nerdy engineer doesn't get to have a girlfriend, but must pay an increasing amount of taxes to finance the single mothers impregnated by the "playas."
If someone is making engineer money and doesn’t know how to get a girlfriend or wife, he has bigger problems than his tax rate. Did you know there are entire countries where someone like myself (fat, old, crippled up and not exactly rich) would be treated like George Clooney, Steven Tyler or Tom Cruise?
It sounds as though you've been watching bad movies and sitcoms.
All of the engineers we know are married or dating. Most are married. They are all employed and/or own their own businesses. Men who design, build, and control things; make good money; and who are thoughtful, educated, and highly intelligent are good husband material.