SEC has done more harm than good to the blockchain industry to be very honest. From time to time it has brought in news like banning bitcoin or Cryptos which has really taken away money from lots of investors who sold their holdings in FUD. It's true that more or less SEC has brought in some regulation into the picture by slowly probing into whatever is happening in the crypto world but I think until now they should have already brought in a good legislation which unfortunately they haven't , so really they haven't made a big impact on crypto industry.