Why would that be bad? I couldn't care less about the actual value I'm generating to a company. As long as I can maintain a balance of working the least and earning the most and my employer think I'm being overpaid, I'm fine. The reality is that even when I strive to work the least I can, I still am being underpaid. That's how companies work. The value I generate is much greater than what I'm paid.
Putting it in another way: imagine you are sick and a doctor can recover your health. The value they provide is unmeasurable. However, there are many of them able to help you recover, and they charge differently, based on a number of factors. Despite, they all provide you a unmeasurable value: your health.
Can you see how the money you make can't be determined solely by the value you provide?