I don't know about developed countries, but your review is right, because I live in a developing country, the impact of crypto on society is very helpful, although not all people know about it, but it has helped the lives of many people from previously only having a fixed income for a month to now increasing.
You don't need to say who has improved their life by investing in cryptocurrency, just use yourself as an example. Have you become rich by investing in cryptocurrency? I am a cryptocurrency investor like you but I must tell the truth that making money and profits in this market is not as easy as many people imagine. I have also earned quite a lot from the market but I have also lost a lot in the past and I don't think many people would be able to accept such losses.
This is the financial market, it doesn't create jobs and someone will pay you. How can it positively impact the national economy? Also, do you voluntarily pay taxes after getting involved in cryptocurrency? Don't exaggerate things too much and we are talking about our money so we need to be realistic and very conscious.