Satoshi's lesson is that you don't need to be the next Einstein in order to change the world. Nor do you need to have much money, or influence with the world's "movers & shakers". You just need to put in the effort.
A great takeaway. It would be interesting to know the details of all the things satoshi had to overcome. Surely people were wondering what was taking up so much time and if the outcome would be worth the effort. I'm sure there was lots of discouragement.