You can rename it easily by changing the lexicon string.
Go to System -> Lexicon Management
Select the "Resource" topic (page 2 of the topics) and put "resource content" in the filter field. Then click on the grid.
Double-click on "Resource Content" and change it to whatever you like.
The output will be in all uppercase and will survive any upgrades.
I’m not sure about hiding it on specific tabs. I don’t think so, but maybe there’s a way I don’t know about.