However, that's about as far as the relation goes. Technological improvement can both reduce the demand for labor and increase GDP. If there is no reason for demand for labor to increase, wages won't rise.
The narrative that a small percentage of people is earning so much and therefore everyone else must earn far less is popular, but mostly wrong. I gave you the source that says perfect income redistribution would cause only a wage increase of less than 20% to the current median. That's the real impact of income inequality, it's not more than 100% like this article would like you to believe.