Do you share a part of you charge with the people that contributed? If not, what you're doing is the same as what others did when they took your work and profited from it.

You've all agreed what can and can't be done with your code based on the license you used.

If you want to make money with software, it's proprietary or dual-licensed (A)GPL with CLA. Anything else you'll bait and switch on people.