The best ideas will win out eventually, because it's all a function of people's brains (it's all an illusion). People die and their ideas die as well, unless there is a good system to perpetuate those ideas.

And Good information always beat Bad information, especially in the internet age.

Bad information can be promulgated in absence of Good information.
Good information can be promulgated in absence of Bad information.

But together, the Good information is favored.