Companies try to optimize profit for their shareholders, which includes paying as little as the workers will bear (or less, as in some cases people need to work

Companies try to optimize profit for their shareholders, which includes paying as little as the workers will bear (or less, as in some cases people need to work to survive). Similarly, I think people have the right to optimize their time and income. Of course, it can be made illegal through your employment contract. So just like big corporations, you need to include the possibility of a lawsuit and a fine into your expected outcome calculations. Having been both an IC and a manager at one of the FAANGs, it's not unimaginable to me that there will be people who can pull off two jobs and still get more done than average. Personally, I'm not sure whether it's an optimal strategy. You might be better off getting promoted really fast, if you feel you have the opportunity. But I won't judge.