No single benefit for men in marriage to be honest. Imagine providing , protecting, mowing the lawn, lifting the heavy items, repairing the generator, fixing the cars, working at the shore, planning dates, buying dress, paying for uber, spending all your earnings on a woman who just do nothing in return.
This is why I advise every man to marry their fellow man so that efforts can match and the other person will understand your sacrifice well because they are in that position too.
Woman to woman: please get your life together and start prioritising your financial stability. Do this to avoid dating, marrying or befriending from a place of need. A woman with money is a woman with options !