I Just recently got a job offer from walmart, Overnight Stocker PT is there any opportunities for advancement?

Also I hate WalMart I feel its the most corrupted corporation since Enron, I understand other companies have sleazy practices as well, such as google (my favorite company). But, there's just so much flack about them that I hate them. That being said should I even work there? I just recently graduated from college in Business with 2 degrees and a 3.38GPA which means nothing since the degree is from Northern Arizona University and I didn't get honors with my degree.So coming fresh out of college, employers are going to be wary and I understand that. They are going to pay me $7.95 which is chump change, I feel I'll be doing more work than what I'm paid to do I was told it had the (other duties igned label on it) so I guess I'm right on that. I also don't like the fact that I'm timed for my work seems like micromanaging to me, hopefully I don't get an authoritarian boss. Yeah I understand the pickings are slim in this economy and I seem like I'm whining right (well at least you have a job) but, like I said I hate Wal-Mart and I hope bankrupt. Plus I think that there is no opportunity for advancement with exception to people who've worked there for years according to many forum posts that I have read on this issue.