I think it is a combination of VCs really believing this is the next big gold rush and radical innovation which will change the world plus a few true believers who think we need all the ... compute (I dislike the word) to run the acausalrobotgod who will fix all our problems (and 'We' need to prepare so China doesnt build it first).
To go back to the first group, when they say 'dont get left behind' they are bot addressing you or me, but other capitalists (as in people with money, not just people who believe the ideology is best)
Edit: wow this question attracted a lot of conspiracy theorists.
Im just surprised they have even more ideas they have not written up, surely we are missing out on some quality content.
Butlerian Jihad now.