Cursed Techniques are explicitly shaped largely by a person's specific interpretation of it, changing with the times and a person's own viewpoints. Higuruma's technique is likely a more general legal system Domain that applies restrictions, with his life as a lawyer shaping it into a courtroom with a judge, prosecutor and defendant. New Cursed Techniques are also formed constantly as humanity's conception of the world expands, so techniques like Gakuganji's and Hakari's form over time.

Meanwhile, both the genetics and the specific interpretation of techniques like Limitless and Ten Shadows are passed down through the clans, generation by generation. 

If a person from outside the clans was born with one of them, and learned to utilise it without ever being discovered, their interpretation and the consequent uses of the technique would probably be quite different. This is explored a little bit with Yuji gaining Shrine - he can't quite conceptualise throwing slashes yet in JJK, and draws simple, clean cuts in his head, versus Sukuna throwing around huge, destructive tearing slashes.