Yea, I'd say you lose some integrity if you ask for raises, most of the time if you're gonna get one they'll give it up. But I'm sure people get overlooked from time to time, you just have to use your best judgement.
Do you get insurance at three or six months? that's huge.
Also with any job.. 75% of moving up is showing up ontime and every day you're scheduled.
"When the people find that they can vote themselves money, that will herald the end of the republic."- Benjamin Franklin