[piva00]

That's not being rational, that is being individualistic and short-sighted in name of greed/saving cash. Rationally you want to keep the Earth viable for human populations, for at least the sake of the future of your family if you are that individualistic.

[qwebfdzsh]

Not on the individual level, free-riding is perfectly rational if you goal is to maximize your personal wellbeing, wealth etc.

[piva00]

Perhaps the issue then is the hyperindividualisation after the atomisation of society.

To my mind it's not perfectly rational to maximise my personal wellbeing and wealth in detriment of others, maybe I have a collectivist sense higher than others, maybe we should instill that across societies.

The 20th century went too far with the me-first approach, we can see it's not really working for societies.