The relative ubiquity of the internet is an important consideration here. In previous swings of the pendulum, computing (and/or the internet) was concentrated among a much smaller base of users, many of whom had strongly vested interests in the side to which the pendulum was swinging.
These days, the internet is certainly ubiquitous, and "smart" mobile devices are basically ubiquitous, if not yet entirely so. And the vast majority of today's users don't seem to care about privacy, open vs. closed ecosystems, etc. The sheer volume of users who either don't know, or don't care, about these things shifts a LOT of power into the hands of the current power players in the status quo. Hackers and power users are still major forces for change, and always will be. And, in time, they may prevail by offering better solutions to the masses. But the weight of the masses is heavier than it ever has been.
I submit that the fulcrum on which the hackers will tilt the masses isn't security, privacy, or anything of that nature. It's openness, and by proxy, IP management. It's the free transmission (or lack thereof) of ideas, information, and content. It's the interoperability (or lack thereof) of all of these things between devices and systems, outside the restrictions or central control of one or two major parties.
But the force currently arrayed against the growth of openness is a powerful one. It's convenience. And convenience is, arguably, THE most powerful driver in human psychology. Apple, Amazon, Google, Microsoft, telecoms, and other players in the content space are making plays to become total-solution providers. And the appeal of a one-stop, total solution (the Walmart Effect, if you will) is quite powerful to the masses. To overcome this appeal, the next great disruption will need to equate openness with convenience. Open must = easy. More precisely, open must be more highly correlated with ease than walled gardens are correlated with ease.
An historical side note:
AOL's monopoly in the ISP game, which lasted for so many years, came about because AOL offered the easiest, most idiot-proof, and most convenient internet experience. It was a walled garden, but beyond the wall, the typical user just saw a massive, untamed jungle full of complex systems, wonky communities, and seemingly insurmountable technical difficulties. AOL fell when people figured out how to make the world outside the wall more ordered, more appealing, and more uniformly approachable. Open standards had a lot to do with this. So did the appearance of portals, which represented a less daunting half-step between the Great Untamed Wild and the AOL garden. And search engines continued this evolution, making the point of entry into most users' internet experience very centralized, orderly, and convenient without walling everything up. Search engines created the subconscious appearance of a walled garden without actually erecting walls.