I don't feel very successful, we barely cover our bills, and that's without making a dent in my student loans. I just bumble along, trying to collect experiences the way I collect information. It sounds cool, and I am fine with it, but it's really just restlessness. I certainly don't consider myself driven. I do, however, value what independence I have, and I take my responsibilities seriously (even while trying to reduce them!)
If you poke around, though, you will bump into a few successful INTPs here. Most of them are older.