Prowess is mastery. For the chef, it may be sharpening their knife every time it is used. For the attorney, it may be improving the inflection in their voice so that their argument is more readily heard. For the parent, it may be changing how they teach something so that their child can learn it better.
Probity is the quality of having strong moral principles like honesty and decency.
Both can be limited to a person or profession. Fatherly prowess. Fatherly probity. Legal prowess. Legal probity.
Superiority never separates the two. To be superior requires mastery coupled with strong moral principles.
Brandon L. Blankenship