Because of their very nature, centralized systems open up vast areas of opportunity.
For those who bother to identify them, of course.

The internet.
Huge amounts of information only a few clicks away.
Students find it easier to compile their term papers. Or to just click and paste them.
Powerful individuals/organizations have found yet another way to further their interests:

A long-running Papuan separatist movement has flared in recent months, sparking fresh calls for self-rule.
But with access to the region heavily restricted, social media has become a key source for the foreign press.
One expert told the BBC the apparently co-ordinated campaigns were seeking to skew international views of Papua.


The government.
A mechanism put in place by nations to manage the day to day survival of the social mechanism.
The more centralized, the more efficient. At least apparently…
Centralized China is decades away from the more ‘lax’ India. According to certain benchmarks, of course…

Corporations.
Individuals, no matter how smart and or powerful, can achieve only so much when acting alone. That being the reason for people coalescing in nations.
Also for economic ventures. People working in concert are more efficient than individuals toiling on their own. When led by a somebody who is simultaneously smart, charismatic and ‘organizationally skilled’ the results can be utterly fantastic.
A corporation might even become powerful enough to resist government.

The FBI Wanted a Backdoor to the iPhone. Tim Cook Said No.

Only some governments are more determined than others.

Apple drops Hong Kong police-tracking app used by protesters.

How else to explain what’s going on but by remembering that all centralized systems are simultaneously manned and surrounded/watched/accessed by individual people?
Who identify the various opportunities presented by the increasingly centralized structures which bloom around us.
Who use them to further their goals, whichever those might be. Who choose which goals are worth pursuing and which are better abandoned.
Who determine, individually, what decision must be made in each situation.
Who use whatever the power they have at their disposal in such or such manner.
Who allow others to use them in a centralized manner. Or not….

Explainer: How Trump used the U.S. government to chase conspiracy theories

NB. The last example I used can be substituted by countless others. Trump just happens to be ‘on top’ the still most powerful, and looked up to, government on Earth. Furthermore, he had been democratically elected into that position. Hence his actions – and his government’s reactions, illustrate perfectly the situation we find ourselves in.