Good men are scarce

Good men are scarce.

 and A good man is hard to find.
Prov. Men who make good husbands or workers are rare. Larry is the best employee I've ever had, and I'll go to a good deal of effort to keep him, because good men are scarce. "I think you should marry John," Sue advised her daughter. "He's a good man, and a good man is hard to find."
See also: good, men, scarce