Why do you think it will be net-good for society in the long run?
If wages go down, worker power goes down; and if dependence on labour goes down, you literally move closer to the situation of the extraction economies in things like petro-states, leading to oligarchy instead of democracy.
It could be the end of ordinary people's power over society rather than anything even slightly good.
Nominal wage doesn't really matter, just real wages+purchasing power.
Goods and services prices will fall far more than wages for most people.
Why?
Because there will be far more efficiency and competition than pre-AI. It's plainly evident from the nature of the technology.
If one business can do something cheaper, other businesses will do it cheaper too, and have to cut prices to compete.
But the shock will be sudden so it won't feel good for our gen. Future generations will benefit without the drama.
Don't get me wrong, there will be big losers in some fields, and the short term will be painful due to retraining and loss of purpose/emotional toll.
Many of us built careers doing things that may not be relevant anymore. Or relevant in a different, perhaps diminished way.
But the same has happened to many professions throughout history and it's always led to general improvement of the broader public's welfare.