I don't think this math depends on where that time is saved.
If I do all my work in 10 hours, I've earned $1500. If I do it all in 8 hours, then spend 2 hours on another project, I've earned $1500.
I can't bill the hours "saved" by ChatGPT.
Now, if it saves me non-billing time, then it matters. If I used to spend 2 hours doing a task that ChatGPT lets me finish in 15 minutes, now I can use the rest of that time to bill. And that only matters if I actually bill my hours. If I'm salaried or hourly, ChatGPT is only a cost.
And that's how the time/money calculation is done. The idea is that you should be doing the task that maximizes your dollar per hour output. I should pay a plumber, because doing my own plumbing would take too much of my time and would therefore cost more than a plumber in the end. So I should buy/use ChatGPT only if not using it would prevent me from maximizing my dollar per hour. At a salaried job, every hour is the same in terms of dollars.
If I do all my work in 10 hours, I've earned $1500. If I do it all in 8 hours, then spend 2 hours on another project, I've earned $1500.
I can't bill the hours "saved" by ChatGPT.
Now, if it saves me non-billing time, then it matters. If I used to spend 2 hours doing a task that ChatGPT lets me finish in 15 minutes, now I can use the rest of that time to bill. And that only matters if I actually bill my hours. If I'm salaried or hourly, ChatGPT is only a cost.
And that's how the time/money calculation is done. The idea is that you should be doing the task that maximizes your dollar per hour output. I should pay a plumber, because doing my own plumbing would take too much of my time and would therefore cost more than a plumber in the end. So I should buy/use ChatGPT only if not using it would prevent me from maximizing my dollar per hour. At a salaried job, every hour is the same in terms of dollars.