Actually, there are a lot of high wage workers like programmers who opt to work in co-ops because the ownership model aligns with their values and they find the work both financially and also intellectually and emotionally fulfilling. You need look no further than Ampled.com, which has a robust team of "contributors" who are all working to build and improve the platform on a volunteer basis. Ampled has built a system to track everyone's contributions which will be honored down the road once the co-op has more $ in the bank. And these are top notch folks who have come from Kickstarter and other related platforms (and who also clearly have a lot of economic privilege to be able to work in this arrangement for the time-being).