The standard response is evolutionary:

If you leave profit (growth, resources) on the table, someone else will pick them up and beat you with it.

The supposed analogy is biological. You may choose to check out of the always-do-more-with-less rat race, or even out of existence completely. But that choice will help populate the world with "not your successors". Similar with companies: your "sustainably making profit" premise is incompatible with "willingly foregoes growth / change" – at least in the long term, due to competition.