Most jobs don’t list salaries lol
Or I'll ask former employees sourced from their Linkedin profiles. Fight information asymmetry whenever possible.
Sadly there is not much of an appetite for truth that affects any business exploits that rely on misinformation.
If you began informing Ethiopian coffee bean farmers of how much Starbucks charges for a cup of coffee for just a few cents worth of coffee beans...
They would find a way to raise their price ;)