Keeping yourself and your wife pleased isn't a waste. But getting pent up for no reason kinda is. I'm all for single guys refraining from jerking it to increase their sex drive and find a mate mind you.
You can partake in the marital act without spending any seed, you can even reach climax. It's up to every man to decide how they want to do things, but I believe retention outside of procreation is true male sexual empowerment
I think a healthy sex life is a good way to keep your marriage in good shape. Everything in moderation, but, withholding to make yourself feel "empowered" sounds a lot like what feminists do.
than have a strong dude raise one fucking girl and then wasting his god-given essence on chasing shekels