Why early nuclear submarines were strategic before they were tactically superior

How did early nuclear submarines change naval capability and prestige, and were 1950s SSNs much deadlier than diesel-electric boats?

Early SSNs bring prestige, endurance, and global mobility, while their noise and immature systems limit the immediate tactical advantage.

Nuclear propulsion allows a submarine to remain submerged throughout a patrol and gives it much greater freedom to move around the world. That endurance creates strategic utility and prestige. Early nuclear submarines are also described as noisier underwater than contemporary diesel-electric boats, so their immediate ability to kill is not judged vastly greater. Diesel-electric submarines already represent a mature technology in the 1950s, while nuclear boats are still new. A follow-up establishes that the comparison precedes digital audio processing for sonar.