Sure, you get access to more opportunities.
Would still likely betray them at some point, but as a celestial dragon you have access to the rarest devil fruits, infinite money and some of the best teachers of haki. All of this amounts to power that you can exploit for your own goals.
All I'd have to do is turn a blind eye for a few years and take part in a couple of genocides. Kuma looks like he'd be a pretty comfortable ride but I would prefer Shirahoshi for swimming around on. In fact, she's pretty big so maybe I could get her to pull my ship.