You may well be living a "beautiful", "satisfactory" and "nerdy" life to the full extent thinking
you're the only proud owner of private keys created in a convoluted way that happen to hash
to prime numbers and I've got no issues with that.

However I'd like to point out that according to pigeon hole principle on average there exist
2^96 = 79 228 162 514 264 337 593 543 950 336 private keys (prime or not) for any single hash.

So after all it's possible your private key - hash set turns out not as much unique as you thought.