This is the result of, yes, marketing, but also the kind of naive belief that more magnification → better.
The idea of always just throwing more brain-racking at a problem strikes me as similarly naive. Yes, getting down to work and doing the analysis is important, and sometimes there isn't enough of that. When you don't have enough, go ahead and add more.
But sometimes, the naive brute-force method isn't what’s called for. Sometimes, instead, you need to zoom out.