Been thinking the same, why haven't they (the Governments) stepped in and started regulation. No reaction to an unregulated financial system worth billions doesn't make a lot of sense, especially after 2008 financial disaster.
Which kinda brings you back to, they don't need to because they already have control in some way!
As for how far ahead, I think you're on the right lines with 5-10 years. Look at the at the stealth aircraft that we know about today and those that are still hidden.
Quantum computing will bring many benefits while it's used for good. As always someone will come along and throw a spanner in the works namely a Quantum virus at which point I shall shut the door on my IT career and go and live by a beach somewhere!