Yea, that is WHY most employers were very selective when it comes to hiring. When you go out look for job, the FIRST IMPRESSION will have the employers making the judgement BEFORE they hire you. Then first few months, just keep yourself brown nosing with them (That is one little serect). You will sure climb up faster before you realize!
Anyway, those with rotten attitude may stay with company, but won't last WHEN company goes into "Survival" mode. What does "Survival" mode really means, it means that company is undergoing massive cost cutting and restructure, and often this includes massive lay offs. Those with rotten attitude is almost ALWAYS first to go! I have seen enough already. I went though 4 MAJOR rounds of lay offs and was spared.
Speaking for union shops, that is TOTALLY different issues, and that is why I am opposed to unionized shop.