That’s not how this works. Let’s assume there is a correlation between productivity gain due to AI usage and outcome per working hour. No manager/CEO would say “hey, due to AI my workers get the same work done in 30h for which they needed 40h before - let’s cut their working hours down to 30h with same salary”.
No, that’s not happening. Shareholder value has to increase so keep working 40h and produce more outcome.