@datarama To paraphrase Shcherbina from the Chernobyl miniseries: "See, there you made a mistake: I may not know much about philosophy, but I know a lot about contributing nothing."
We all of us consume resources and produce waste; I'd like to think I've occasionally made a contribution, but the vast majority of the time I exist without actively propagating the sum of human knowledge, and I expect everyone falls under that definition.
The feeling good about it is the thing we can change, and letting the models undermine that is where trouble creeps in.
I won't press further, feel free to ignore me, but at least let the thought percolate that there is continued use to be had out of the skills you've gathered.