The first ban/strike was a great victory for the professional/union musician. The MPTF (Musicians Performance Trust Fund) is still in full gear today, providing entertainment to many civic events at little if any cost to the municipalities. If you go to a "City XYZ Arts Fair" or some such and there's live music being played throughout the day and into the night, odds are good that it's being provided by the MPTF. The musicians get paid (scale) through the union and get exposure to the "general public", plus the city gets to hold a festival that is enjoyed by many, across demographic lines. win-win. If your city has something like this, odds are good that you can thank the AFM MPTF, and for THAT, you can thank the first recording ban. Plus, the MPTF provides many similar services for schools, hospitals, senior centers, etc.
The other two bans, I'm afraid, were less focused, less successful, and were a contributing factor to changing popular taste, especially the one of 1948.