At what point will you realize Lee(and balancing the jungle around him) is killing diversity?
When only him and a couple other junglers are remotely viable, something is wrong. It's mostly the jungle and how it's being tuned more and more to be exclusively for the top tier junglers, but it's also because those top tier junglers are so much better at it that you are effectively gimping your team by trying anything else.
Also, when you added 100 gold to the jungle item to "help the guy who gets killed during an early invade", do you realize you're huring that guy more than the people who killed him? The guy who got the kill just got a nice bit of gold and xp, and will have much less trouble farming up to his 450 starting jungle item. The guy who died now has to go clear 3 camps with no leash and a late start and pray that the enemy jungler doesn't come back in for a free kill. How is this helping the guy who got killed at all if he isn't Lee Sin and able to farm just about whatever he wants?

that most people struggle with.