Obviously benevolent AGI is a prerequisite and they're all working on it. Actual post-scarcity society is a political issue more than a technology issue and nobody wants these guys working on political issues. To the extent that they have gotten involved in politics they have been pilloried for it. So I'd say their actions in pursuing the technology of AI, and leaving behind or not starting on political campaigns, are perfectly in concordance with their words.
Is this a very advanced form of sarcasm or a form of extreme gullibility? For the life of me I can't tell the difference, if the former then well played.