I disagree with some of what is being said. Pot odds never take into account the inherent value in tournament life, increases in cash placings etc etc. PO are a factor of any one decision, not the sole driver.
extreme example - If I am priced in small blind vs one raise and two callers, is it right to call? I think not, how do I know I am not dominated, how do I now my pair, set, two pair is good on a flop - I dont, it costs chips to bet out and gain information. Further more, betting to find information will be dependant on the implied odds re other stacks.
Thus pot odds, for me at least, dont dictate play.