It's on the CW which tells me they would treat Oliver Queen as an early at best mid-20somthing mogul who has inherited his family's company. Take the Lex approach with him but he's the hero. I can almost here the pitch now in some boardroom.
As noted Green Arrow has virtually no cool bad guys in his rouges gallery. The hero is often depicted as being very "Occupy" himself so I can see that included in the pitch. However, people don't care or sympathize with those nuts so any portrayal in that line would fail imo.
I get why they picked him, exposure to the character via Smallville, I just think he's a poor mans Batman with less interesting aspects in play.