The other thing to note is that administration can give as many reputation points in a single day as they please.
However, a normal user can only give their 40 points or so 10 times a day, before they stop counting (ie, you can give reputation, but after the 10th time in a day, you stop giving points.)
Hope that clears it up why admins can never have more than 10 reputation power points but users can keep clicking up the reputation power.
Piere