Nah, that's my point: power is not psychological only or only perception. Power has to be backed up by something real like physical, financial, social.. etc. And such power overcomes resistance through force. And overcoming resistance does not prove that it is useful.
PS: I know about 'out of Africa' theory. But, I think it is bogus.😎
Like Dawkins' "memes", in fact. "Meme" is completely useless as a concept but nevertheless powerful in the sense that it attracts attention.
Memes are social ridicule by mob.