All of your examples are downright terrible, but perhaps that's to be expected with these sorts of arguments.
> AT&T “unlimited” mobile plans
https://www.att.com/plans/unlimited-data-plans/
There's a huge bolded disclaimer literally in the middle of the page which says "AT&T may temporarily slow data speeds if the network is busy."
> Purdue Pharma's OxyContin push
Forced to file for chapter 11
> Juul marketing vaping products as a "safer alternative" to smoking
It is strictly true that the vaping products sold by Juul are vastly safer than smoking.
> Facebook's sale of user data to Cambridge Analytica
Not fraud.
> Wells Fargo opening fake accounts for people
https://www.justice.gov/archives/opa/pr/wells-fargo-agrees-p...
Huge penalties far exceeding their gains from this scheme conducted exclusively by low-level employees.