You have to ask yourself though, with the might and power those families have, if these cryptocurrencies take off mainstream, they'll just buy them up and again control the system. I hope I'm wrong, but they are Psychopathic control freaks (this is my polite version;))
If we find out they have a monopoly on a specific coin, then the answer is very simple, we ditch it and develop another coin, that's the beauty of cryptos.
These families have been the scurge of humanity for the last few hundred years, (our governments work for these families, as they have control of the money supply, so that makes our governments subservient to them as they have to borrow money from them), their time is about to draw to a close, there is a mass consciousness awakening happening all over the globe, we are waking up in droves, it will just be a mater of time before it reaches a tipping point.
Cryptos are the key for us to gain humanities freedom (no pressure)