Wait.... What hostile application is running on your computer that you fear about giving drive access as opposed to folder access? Uh.. So if you do.... What w

Wait.... What hostile application is running on your computer that you fear about giving drive access as opposed to folder access? Uh.. So if you do.... What will that app do? Why are you using such an app then? Isn't the idea like if you install an application on your own machine, it shouldn't be hostile to you and the app is trusted so why should I "fear" that the app has some access?