Regardless of the result of the improvements it will never deliver profit.
For example: if you deployed a quality improvement project that saves 10000$ from the daily scrap,
Do you think this is a profit in comparing to the cost of deploying the project?
– of course not.
But if you saved 10000$ a day for a year, you will get a 3,6 millions per year, and that’s a real profit.
Therefore, profits aren’t gained by improvements only, but with sustainability (the continuality of the improvements).