How would it be any different to the world today? The chasm between rich and poor nations is huge. The argument against this is similar in many ways to arguing against, say, smartphones because only the rich can afford them. And yet 'poor' people, even in our own countries, and in 'poor' countries have smartphones, or soon will have access to them.

As soon as a nation of people get organised enough to plan ahead well enough to copy existing technology, or trade it, then technology can be had by all.

I don't believe it makes a whole lot of sense for 'rich' people to preserve a specific set of technologies for themselves when they can get richer if more people are able to pay for it. And where that doesn't happen we see other countries copying the technology.