Do you believe that altruism actually makes people happy? Peter Singer's book argues that people become happier by behaving altruistically, and psychoanalysis also classifies altruism as a mature defense mechanism. However, there are also concerns about pathological altruism and people pleasers. In-depth research data on this is desperately needed.
While AI value alignment is considered a serious problem, the algorithms we use every day do not seem to be subject to alignment. That sounds like a serious problem to me. Has no one ever tried to align the YouTube algorithm with our values? What about on other types of platforms?
I believe this sort of thing doesn't get much attention from EAs because there's not really a strong case for it being a global priority in the same way that existential risk from AI is.
You might be interested in Building Human Values into Recommender Systems: An Interdisciplinary Synthesis as well as Jonathan Stray's other work on alignment and beneficence of recommender systems.
Since around 2017, there has been a lot of public interest in how youtube's recommendation algorithms may affect individuals and society negatively. Governments, think tanks, the press/media, and other institutions have pressured youtube to adjust its recommendations. You could think of this as our world's (indirect & corrupted) way of trying to instill humanity's values into youtube's algorithms.