Can an individual charge interest on interest?

this means that the organizations objectives should prevail over the interests of a single employee or a group of them.

yes

Under the late payment legislation,if you are in uk,you can. and here's the link through which you can even calculate how much interest you can...

a person that only caares about him

As discussed many, many times here; Charging off or Writing off a debt is a required accounting entry. It is how the one you stiffed, shows the asset it was to receive (the money you we're to pay),...