I don't think there's anything wrong with being driven by that desire. Although I highly doubt that's enough to drive you through 3+ years or hard grind to achieve the PhD. You definitely need a strong passion for your subject, for research in general, for publishing, etc.
I would say this though... the vast majority of people don't know or understand what a PhD is and if you introduce yourself as Dr X they will assume you are a medical doctor. And then when you explain that you're not, you're in fact.a.PHD...they usually respond with disappointment. This is a bit of ah insult, as medics essentially just do an undergraduate degree, and a phd is a higher achievement than that.
So if you think people are going to understand and acknowledge the achievement.of a.PhD, you're in for a disappointment... Unless, of course, you're happy jot to correct then and take the respect they offer when they assume you are a medic.