The financial side of T20 has a huge impact on the development of cricket.
https://sportzbuzz.net/t20-vs-test-cricket-comparison/ has a detailed analysis of how the commercial success of the format is changing the rules of the game. I believe that the money coming from T20 creates new opportunities for developing infrastructure and promoting cricket, but it is important not to forget about the sporting values and traditions, so as not to lose the spirit of the game. The balance between commerce and sport is the key to sustainable development.