[bebopcrew420]

I don't think it effects the pay, exp, or cp. Your attribute rank is as high as you can go in your career rank. It won't let you promote it your job rank exceeds your work exp(attribute). Now when you boost your career rank, you do get more cp, etc. So it is worth it to get promoted, but I wouldn't dump a bunch of points into the "career attribute" until you have to. I hope that helps