On the subject of social-economics and time-travel: When security is really good, like when buffer overflows are gone and protectors work, the ones who control licenses not only control what you use, but who gets what level of automation and productivity. This could be used to sandbox communities and entire countries in to a finance class(and since currency really does control us:poverty class). By then technology will be so hard breaking out of that will be a feat like winning a millennium prize. It'll be introduced by a sudden event that introduces basically what you see in cyberpunk movies and you'll realize it as it happens.. A.I. and algorithms will kill Linux type edge cases too. Like you see kind of with Nividia drivers and Adobe raster algorithms in relation to Linux support and OSS right now; but higher contrast.
Enjoy piracy and fortune five-hundreds and governments being nervous about zero-days while you can.. We're building our own prison.
Well security is also one of those things fully depending on human-factor [for example, what is the point of top-measures, if there will be some Snowden... and he surely will be, it's impossible to predict behavior of every ppl involved, because humans are changing and you today is not you tomorrow], so I don't think it can be really good and there ever will be something in world which works so much secure as planned by no matter who ^^
Even any most powerful A.I. you can imagine, will be hackable by "those annoying human insects" (hi, SHODAN :3) , if only this will not be a planetary scale AI, which controls EVERYTHING, including total physical control over all humans. And even then the things easily will go as in "Matrix" movie scenario and security will be broken.
It's just clear that anything going on in that "prison building" direction only leads to a methods evolution, classical never-ending arms race which longs over all humans history, when some monkey jumped out from the tree and picked up a stick to beat other monkey ^_^
So as for me should not be afraid of such scenarios, for things bothering large groups of ppl that Newton's law ("to every action there is an equal reaction opposed") works so fine as it works in physics.
Btw control based on currency anyway is impossible, for it only works model with "rich vs average class", while "rich vs poverty" always followed by revolution/resistance.
As a "checkmate" ppl always can just stop using digital technologies at all, if they will become so unbearable