I feel like that would be more than enough to provide some real liquidity to any LN projects you you wanted to tackle. I think I'd try my hand at an econ node.
I don't see it as "noble". more like the right thing to do.
When you have a certain level of morality (in society), you know very well the differences between right and wrong.
I would agree with you if we lived in a world where evil didn’t exist. But in the world we do live in, such an action seems more like a noble deed rather than just the right thing to do. It truly is the right thing to do, but few people manage to do it, which is why I see it as something deeply noble.
If was a mysterious donation, I would try to help others to onboard to Bitcoin.
Put them into a LN bank and offer 0 fees accounts to many poor users that cannot afford a decent UTXO.
Dare @Aardvark to a Push-up challenge.