Actually today's top dogs don't have a lot to lose because they still basically control the policy, check for example what is happening in China now, while they decided that getting involved in Cryptocurrencies is in their best interest, you don't see them encouraging their citizens to buy Bitcoin, they are developing their own Cryptocurrency instead and they would ensure that when worldwide crypto adoption happens, their currency would be the one mainly used by their citizens, even if they were to decide to support an existing cryptocurrency like Bitcoin, they have the resources to purchase almost all the bitcoin in the market right now and control the majority supply, let's not delude ourselves, Cryptocurrencies gives us more power but it doesn't render the present top dogs entirely powerless.