People really disgust me!

When will people learn that being honest, benefits them more than always trying to figure out how to do somebody out of something.
I get really tired of people that are just about themselves. Do they think that others don't really see them for shallow self serving people that they are? Don't think that your day will not come when your world falls apart and you look around and see that all you've done has been for nothing.
I almost look forward to the day, and sometimes wish I could be there to see their worlds fall into the abyss.
What ever happened to the old saying of "Treat people like you want to be treated."