Power
Roadies have all the power on a tour—literally. If it weren't for techies keeping the amps, lights, cables, and cords electrified, the talent might as well be singing into their hairbrush and playing air guitar.
That said, the band and the paying customers expect the performance to go off without a hitch. If the front of the house screws up the mix, or the backline doesn't tune up the instruments just right, the whole thing could sound like garbage.
It might be all parties and late nights on the road with a famous band, but everyone—from the guy playing drums to the roadie in charge of the amps—needs to show up and do their job well when the time comes.
Beyond being the keepers of all the actual power, the roadies don't have much else to fall back on. You work for the band, and they could be a bunch of drunk, entitled idiots. We're not saying all musicians are like that, but you shouldn't expect any rules to be in place that promote a safe, friendly working environment or cordial relations between bosses and employees. You'll have to do your job and do what the band tells you, and you won't really have much say in the matter.