You do realize that Gene Roddenberry was both a naval veteran and a police officer? It is no coincidence the show's terminology reflected aspects of both organizations.
No matter the rank, ALL are "police officers". Our chief of police was a sworn police officer, as were all of us in the department.
Naval officers are NOT the same as enlisted personnel. No self-respecting naval person would allow you to confuse them with the other ones. The only difference is that enlisted sailors will call you out more vehemently than officers.
“When all Americans are treated as equal, no matter who they are or whom they love, we are all more free.” -Pres. Obama
"A great democracy does not make it harder to vote than to buy an assault weapon." -Pres. Clinton