Posting links to your hubs will give you two things, although how successful it is depends on your hubs and also how many people see them.
First, you may get direct traffic from people seeing the links and either sharing them somewhere else or clicking on them and visiting your Hub
Second, your Hubs will have more back links so on Search Engines they may appear higher in the search results than they may have otherwise.
My advice, give it a try. You have nothing to lose and everything to gain :)