What if all those big corporates and businesses starts using crypto as a mode of payment just to avoid tax which will cause a direct loss to the government which uses tax for the betterment of the country. This might not affect corrupt countries as it doesn't matter because tax money goes to politician's coffers but what about developed nations?
In several countries, it has been proven that bitcoin is one of the tools to turn the wheels of the economy back in a country such as in Venezuela and several African countries. If you think that transactions with bitcoin are to avoid taxes, I think you have forgotten that tax employees also have intelligence and as part of the government, they are also developing with the times. An example of what happened in Indonesia, many tax officials who follow Indonesian artist accounts to check the assets they have and whether the tax obligations have been implemented.
There are no government institutions that are stagnant in their nature according to the challenges and opportunities they face. If indeed the crypto transaction volume and frequency is high, of course, the tax agency will see this trend as an opportunity to get income for the country.
So in my opinion, the use of cryptocurrency is beneficial for the economy because it provides a simpler, faster and cheaper payment alternative.