I very much like to make arguments for things on a basis of "enlightened" or even "unenlightened" self-interest, because those are powerful motivators -- even for people who purport to decide on the basis of ideals (because quite a few, even of those people, will betray those ideals in secret, if they don't see the benefit to themselves).
There are a number of good systemic, ethical, collectivist, individualist, and pragmatic arguments for UBI. It's a very robust idea.