Software development is one of a fairly short list of fields where people regularly epouse the virtues of unsustainably long work weeks, and openly state that employees not meeting those requirements will not be successful. I wouldn't describe the working conditions of software development as great in many companies, a lot of snacks doesn't make up for 80 hour work weeks. I could definitely see a guild type arrangement setting minimum standards for hours and working conditions, just like they do in other well-compensated fields.