Dear GMS
MA Fee's and contracts are not standard. MA fee's are a function of responsibility what is managed by the MA and what is not. Why pay someone to do it when you can do it yourself and save costs is your repeated question.
The answer is the perenial contractor issue. Why does a contractor earn a profit but subs out most of his work ? Why are u paying him ?
Locke
If we look at it in a simple way, it like asking why do we choose to eat at the hawker centre when we can cook ourselves? Why are we paying the hawker when we can save the money?
It is to save us the hassle of going to the market to buy the ingredients, to prepare the food and wash the dishes. Time and trouble save enable us to spent on other more productive and meaningful purpose.
In the corporate world, the principle is the same. Companies outsource some functions to enable them to free up more resources.