Will programmers/software developers work for a % of CO. profits instead of salary to form a company.?

If you were going to form a company and expertise, time, and brainstorming in your spare time would get you a share in a company once put together would you try it or dismiss the idea completely. Now ask yourself what if the piece could be worth 2 million for your time. I myself give up time and receive nothing but satisfaction in return. Would you be willing to form a team to work on the side ( not giving up your day job ) and take a chance.