Are pump and dump groups really that wealthy?

I've been more cautious with altcoins but like to speculate occasionally with the <10million market cap coins where pump and dumping is rampant. Reading recently about Digibyte and not really understanding its use case came as a surprise to me, but I figured it was viable at a 500million valuation.

Perhaps the notion of a "pump and dump" isn't so concrete, explicit, and coordinated at this size, but its community can be vaguely predatory towards investors who want "lower risk crypto" and like its market cap.