Free users certainly would like it to be a social contract like I would like to be gifted a million dollars. Sadly, I still have to work and can't infinitely rely on the generosity of others.
Free software developers are gifting you something. Expecting indefinite free work is not mutual respect. That's entitlement.
The common is still there. You have the code. Open source is not a perpetual service agreement. It is not indentured servitude to the community.
Stop trying to guilt trip people into giving you free work.
If the software developer doesn't return your cart, he betrayed the social contract.
This sounds very manipulative and narcissistic.