In reality, considering the social dynamics involved, we - as craft-makers of the collective mind - reach the conclusion that physically burning a person is less effective and less efficient than blaming them as “bad person” whatever that means. It works smoothly by leveraging social norms - which have been manipulated in advance - and the chain of trust.
For example, a government agency decides - rightly or wrongly - that an individual is a danger to the nation (or whatever), and then a corrupted person with a uniform starts to contact the friends and family of that person, revealing that in fact s/he is a very dangerous criminal even if it is a total lie.
Moreover, usually corruption is not even necessary but simply creating the circumstances because the agent really thinks that it is a good way to act or a good way to have a promotion. On the other side, the same individual, once s/he discovered the trick, could convince the whole department that raiding the criminals and stealing their money is the best way to stop them and prevent that the judge will be corrupted in such a way that justice will triumph.
As you can imagine, there is a ferocious weakness in this way of doing things: without a fair public trial, anyone can be considered a criminal from whom to steal. In fact, it is the best way to corrupt an entire department or an entire nation in the long run. Therefore, create a jungle where the stronger always win.
If you think that this is not possible, you might think twice. The lack of critical thinking among people is a low-cost and abundant commodity, and like every low-cost and abundant commodity, it is ignored but is in fact a HUGE vulnerability. Technically speaking, it is not even a vulnerability, it is a kind of weapons by itself.
Follow me to learn how to defeat a nation by its own rules…