No, that isn't true at all.
In this economy you make the most money by creating the perception of value through psychological manipulation.
Actual use-value creation is different and economically secondary.
WeWork is a perfect example. It's an IPO-brand - barely failed, but it was close - instead of a sustainable business. Like competitor IWG/Regus.
This why branding and marketing are a thing. You use them to increase the perception of value. An unbranded widget or service can have identical use-value to a branded one, but the perception of value can be manipulated to make one far more expensive.
As for VCs - VCs are destroying value, because VC culture is geared towards unicorn farming and IPO cash outs, not stable-but-unspectacular business development.
See e.g.
https://techcrunch.com/2017/06/01/the-meeting-that-showed-me...
There's a huge amount of potential value being lost because sustainable but unspectacular businesses are starved of growth funding.
There's very little capital available anywhere for these businesses. Banks won't touch them, they can't go straight to IPO, and VCs aren't interested.
In fact VCs are mostly a subset of the investment industry, which makes its money from client fees, not from returns. Clients are tolerant of mediocre returns as long as there's the prospect of a lottery-winning unicorn jackpot somewhere in the portfolio.
As for Masayoshi Son - I have no idea what his game plan is. Nor does anyone else, clearly.