Not really. Before NPT you missed a small gap in there of 20 years where the USA and USSR built 10's of thousands of nuclear weapons and ICBMs.
And actually, public perception at the time saw Nuclear Weapons extremely favorably, as the bombs dropped on Hiroshima and Nagasaki ended the deadliest war in human history that killed 50-60 million people, most of which died excruciating deaths in trench warfare, fire bombing, chemical warfare, starvation and so on.