The more everyone makes spiritual advancement, the more everyone is happy in that state, the more God is happy. So, that should be our happiness. Then there is no envy or jealousy. There is only competition of who could serve each other better. That is a beautiful state of mind.
The greatest power of God is grace. The grace of God could lift one up even from a very fallen, miserable situation and give one entrance into the realm of eternity.
As long as we identify ourselves only as a product of this material existence, there can be no real peace.
Unless one is willing to accept sacrifice or inconvenience, nothing great can be accomplished in life.