The entire socioeconomic system is based on production for profit and a growth imperative that cannot be sustained.

If you're in a system where you must make profit in order to survive. You are compelled to ignore negative externalities, effects on others.

I get terrific health care.

Education is imposed ignorance.

Whatever the reasons may be, I was very much affected by events of the 1930s - the Spanish Civil War, for example, though I was barely literate.

Surely few if any readers have come across the sentence they are now reading, and someone who had by chance heard or seen it could not possibly remember such a fact.

As for organs, traits, etc., being "for" something, the notion may be a useful shorthand, but shouldn't be taken too seriously, if only because of the ubiquitous phenomenon of exaptation.