There are none so righteous as the newly converted.
The analogy I like to use is imagining we're all playing a board game, say it's the Game of Life. I find myself in the middle of the game, but I can look behind me and see a lot of people just starting out and I can look in front of me and see how far I still have to go and see others ahead of me. I don't feel angry at others who are just starting the game and I don't feel jealous of those in front of me. I learn from the people in front of me on the board, and I teach, by example, to the people behind me. If someone asks me for help, I give it.