You won't get more money, but you will have more demanding tasks. Also, as I stated before you will become 2nd lietuant, which is an Officer-level rank, also allowing you to more easily become captain and so on, if you want to make a career. When you're NCO, you have to take extra courses to become 2nd lietuant, which is the requirement to national defence university, the place that is a requirement for having the be active lietuant. (Here, there is the active service rank and reserve ranks. Reserve ranks are used in war and refresher training.)