Full Idea
'Will to power' is most basically applied not to people but to 'drives' or 'forces', simpler units which Nietzsche sometimes calls 'points' and 'power quanta'.
Gist of Idea
The 'will to power' is basically applied to drives and forces, not to people
Source
report of Friedrich Nietzsche (Works (refs to 8 vol Colli and Montinari) [1885], 1) by John Richardson - Nietzsche's System 1
Book Reference
Richardson,John: 'Nietzsche's System' [OUP 2002], p.20
A Reaction
This strikes as a correct account of Nietzsche, and a hugely important interpretative point. He wasn't saying that all human beings would conquer the world if they could. The point is there are many conflicting and combining wills to power.