My remark was a rebuttal to the assertion that these contributions were guaranteed. That notwithstanding, I'm unsure that I agree that it amounts to about the same thing; we tend to take care of each other as a matter of due course and not as a transaction.
The mainstream Anglo-American attitude around this kind of support leaves me scratching my head a lot of the time.
It is a kind of transaction. While I don't know the details, isn't it some form of you support the community, and the community supports you when you're in need?