The "FAANGs" or "MAFANGs" of today are the Standard Oil / US Steel / Westinghouse / etc of yesterday. Bezos, Musk, Pichai, and all would fit in really well with Rockefeller, Astor, Carnegie of yesterday. With one big exception: at least Carnegie and Astor and Rockefeller created enduring arts, sciences, and public spaces of good. The billionaires of today are primarily takers, with perhaps Gates as a notable exception.