When the industry is highly lucrative on the backs of overworked labor, some type of a union apparatus is the most affective way to ensure fair compensation.
Yes, we can educate others who want to enter the industry, but when you're graduating out of university with a fat debt, you'll accept the poor working conditions for long enough and the cycle will continue to perpetuate.
The best protection against predation is for the prey to act together. Predators will always divide and conquer and go after the weak, and so the weak must be protected. The other way is increased competition - but our environment is becoming more and more anti-competitive.