Yeah but they need to work in order to make money but then all the money made is used up by their salaries that automatically increase. I think there should be an option to promote your workers instead of automatically increasing their wages because some of them become very skilled too fast and their wages become too high for you to support
If you just wait a bit, you'll just loose even more money because their wages increase automatically, their wages shouldn't increase unless you allow it to like promoting your workers
The wages increase with their skill, if they are not working they won't increase.