They want to make money and people are dumb and consumerist. That's a great explanation about the idiocracy in contemporary society.
And I'm not talking about jews or being against capitalism at all. I'm saying that facebook and other platforms are optimized for low cognitive load, so that any other stimuli for selling products have more convertion rate. Not just explicit ads, since today they control your news feed in a way that you don't perceive someone is trying to sell you things.
That's why they track people everywhere, they want to 'optimize' their target public to the maximum, based on behavioral analysis.
Of course, government uses it as a tool too, but most of the shit today, like the crazy widespread of dangerous ECMAScript's support on mainstream browsers and GPS turned on by default on the PTD (personal tracking device), it's all about this: money.
So, if you ask "where" it went wrong, I would probably say that humanity itself is the wrongness and the fight for self-affirmation and to feel more and more acepted and the 'special snowflake', posting pictures of their bodies on instagram, that is the real problem.
Second, I would say the urge to do things as fast as someone can, so someone can profit on it. People don't want to do the 'right' because they say it takes too much effort. They just want to go home watch netflix on his "smart TV", take his dosage of SSRI's, eat the crappy food industry makes full of carbohydrates and try to show his life is good on instagram, so he can feel less bad and continue to ignore all the bad things that is happening everywhere around.
If computing and was created to be 'right' it would be designed thinking more on essential aspects of a system (such as safety, security, reliability, etc) instead of just trying to reduce the power usage with bad and unknown microcode, lauching a new "module" to the ISA that promisses better L2 caching and then selling it for twice more money, as Apple and Sumsung/Qualcomm is doing today.
But, guess what? These people make a lot of money and the admin on imageboards can't even pay the fucking VPS.
Maybe we are too innocent and idealist for all this madness.