Cryptocurrencies are the best investments of all-time and still the best performing financial assets of the last 3 years. Assets with such charateristics are exactly what the richest and most powerful people are always looking for and exactly what the poorest of the poorest can only dream of.
Not only are these assets the best investments of all time and still the best performing of the last years but they are reducing governments power and redistributing them in the hand of the people. This is also exactly what everyone is looking for rich or poor.
Everyone is under the threat of a government. Everyone is trying to protect themselves and their wealth from governments' reach.
People who are already rich usually stay away from high-risk investments like cryptocoins or ICOs. They prefer to stay safer and invest their money in tools which they are pretty sure to not lose money on them. Cryptocoin actually are more for gamblers nowadays, they could continue to grow or not. The future is quite unpredictable...