Man this should be a serious concern. If large financial institutions can heavily influence trade and the value of a currency, and covert operations can cause a hijack in the PoW currencies, we could be at the mercy of 2 more entities we want nothing to do with.

You could start your evil empire hitting the small market cap coins to build up some funds and attack the larger ones.

Good food for thought for sure and I would love to discuss solutions the regular folk could participate in.