That's the bit I don't get.
Why do they get PO'd at others. The rules of the game are clear.
If some one gets "more" than you for "less", they are winning.
There's no rule that they mustn't, there's not even a rule that they shouldn't.
The only person to get PO'd at, is yourself for not doing as well.
If they didn't know the rules before they entered the game, it's no surprise that they lost.