Don't be lazy. There are many many many many many projects that thrive with _zero_ cash flow, of which many are found in ChromeOS already. There is no reason for there to be a single drop of proprietary software on a laptop besides the user opting for it.
I'm going to hijack this comment to add that your opinion that money is the only reason to develop software is one of the worst things to ever happen to computing. If creativity and desire to help the world isn't enough for you, pass the torch to somebody else, because they will do a better job.