Might have been the plan all along, even. Sad
As I see it you're basically arguing for less focus on innovation. Skiff failed as a business. To not waste resources would mean it had to never have existed in the first place. That means you need to limit the desire of investment in risky or innovative ventures as most of those will fail. When they fail the resources used for them are wasted. This is because if you limit the ability of companies to exit to recoup some loses then you increase risk for starting a company. It also doesn't prevent waste in any way since the existing large companies (now even larger due to less competition) can still internally make and kill products at will. Or just do things very inefficiently.
Part of maintaining a healthy work/life balance to be able to keep things separated.
I enjoy thinking back about stuff I made, knowing it's out there doing its job.
I can separate out my work (which, lest we forget, is the majority of my waking hours, because of the reality of working a full time job) but that's not particularly good for my mental health either. It's part of the reason I am looking to branch out my career into a different, perhaps more durable sphere.
All I'm saying is, if it's affecting you, changing aspects about your career is valid. Just getting used to it doesn't work for me, despite it being fine for others.