It depends I think if you want it to and you really get to understand how it all works and comes together, then you could yes. The only danger with that I guess is HubP closed down, you would be left high and dry. Hopefully though that will never happen.
It's like anything at the start. Most people skip over the great free advice that you get here and just write hubs. There's a lot more to it than that. Read the learning center information, make your own notes.
Then go for long tail keywords with low competition and you will eventually start to build a good base and make some money.