They would make less money if they made the chip repairable. This doesn't have to make them evil. Apple being more profitable also means they can lower the cost and push the technological advancement envelop forward faster. Every year we will get that much faster chips. This is good for everyone.

This doesn't mean Apple's carbon footprint has to suffer. If Apple does a better job recycling old Macbooks than your average repair guy who takes an old CPU and puts in a new one in a repairable laptop then Apple's carbon footprint could be reduced. I remember the days when I would replace every component in my desktop once a year, I barely thought about recycling the old chips or even selling them to someone else. They were simply too low value to an average person to bother with recycling them properly or reselling them.