I would call this “being so skeptical that your brain falls out” since you could make the same argument (about either politics or money) with scientists, human rights advocates, programmers, etc. “Actually you can’t trust anybody and all viewpoints are equally suspect” isn’t as enlightened as you think.

In this specific case Apple and Samsung have been proven dishonest and manipulative, and they have a far stronger legal/financial incentive to lie than separate groups of prosecutors in the US and many separate EU member states. I also find a conspiracy internal to Apple/Samsung much more plausible than a conspiracy across attorneys general from 34 US states.

> “Actually you can’t trust anybody and all viewpoints are equally suspect” isn’t as enlightened as you think.

Only trusting viewpoints that agree with your personal biases isn't enlightened, either.

> "In this specific case Apple and Samsung have been proven dishonest and manipulative"

is an unvarnished falsehood. The throttling wasn't across the board, it was triggered in specific circumstances related to the state of the battery. There was never any evidence that this was a scheme to defraud customers.

What would they gain?

Well one former prosecutor recently became Vice President of the United States. In any case, District Attorney is an elected position on most places, and having a reputation for being tough on the "bad guys" is a good way to get re-elected.