It ends up as evidence when routine business operations are breaking the law. Everywhere I’ve worked hasn’t had an issue with this stuff being tracked and several places actively preferred when stuff was recorded. Most companies don’t have an issue with clear communication because they’re not worried about what’s being said will end up part of a criminal investigation.
So this is something that’s almost exclusively going to harm criminal organizations by making them less efficient.
That sounds like a win win.
"Give me six lines written by the most honorable of men, and I will find an excuse in them to hang him."
I would guess you haven't had to experience such an unfair situation personally as you still have that young/naive optimism about the world. If you ever find yourself entangled in some legal technicality, you will realize that that is a really bad idea.
On a similar note, never talk to the police, no matter how lawful you may think you are.
> Most companies don’t have an issue with clear communication because they’re not worried about what’s being said will end up part of a criminal investigation.
Only if you count "most companies" by company, i.e. most companies are therefore small businesses. And of course they're not worried because they're small and not subject to these kinds of investigations. They're not profitable enough to be targets.
But if you count "most companies" by where most people work, you're talking about medium-to-large corporations. And it's standard these days to have policies exactly like Google's, to not retain instant messages for example, and delete e-mails after a short number of years. Because they're big juicy targets for frivolous lawsuits.
So no, this isn't a win-win. People say dumb stuff all the time that a lawyer can take out of context. That doesn't mean a corporation is a criminal organization, as you suggest.
Corporations sue each other all the time, not because the corporation being sued is criminal, but because the corporation suing thinks it'll be able to get away with it. But you seem to be ignoring that.