if reputation were to be represented in transferable tokens then I am not sure how you could take them away before they transfer them or sell them to other accounts.... if they were not able to transfer the tokens then they would not have any value.
I have stated on some of my post that re-blogging and indirect marketing could be a good way to monetize reputation and popularity in steemit... Celebrities do it all the time on other social platforms, they basically sell exposure and endorsements of products.