I think that quote comes partially from the perspective of someone who doesn't recognize the nature of the stakes because they're different, not because they're smaller - if it was really intended as much more than a snarky critique of academia.
It's not as if everything outside of academia somehow involves much higher stakes. You could basically dismiss the whole of Google or Facebook as being small stakes, following similar logic.
In industry, a breakthrough correctly capitalized on can mint you millions of dollars. If you start a company, it could be tens to hundreds of millions. You then are not beholden to an institution or grants and can do what you want.
Just because you have a reputation and livelihood doing something does not mean the stakes are big in the general sense. Otherwise every job would be high stakes for everyone and the term would be meaningless.
The quote came from a professor at Columbia University.