The phrase 'Patents are evil' only makes sense if you are not sacrificing anything so that you can build something whose demand exists but there is no solution or whose demand can easily be created.

If one sees this and starts to spend night and day developing it... 'Patents are evil' will make very little sense to him,.. in fact the lack of patenting would be evil, sad, retrogressive. It would leave development to a man's good heart no expectations from the world for his late nights and early mornings, as the world sleeps. Sorry people, but the world would simply not let that happen.