As someone who considers myself to be (economically at least) right wing, I can still still the immense value that a good dose of inspiration can do. That is what he has done so far. It may not be a policy or a new legislation but there are many millions of people all around the world who got out of bed on 20/01 and felt a couple of inches taller. That HAS to be a good thing, not just for the warm and fuzzy's but for morale and as a by-product productivity and therefore the economy.
Yes, he's a leftie but the world needs a leftie every now and then. They're the dreamers, the idealists, the big thinkers, the inspirers, the builders of nations.