I feel Disney has always been rather unscrupulous as a company but had been able to maintain a good positive image due to releasing good work as well as being very good at hiding their bad business practices.
Disney has been a strong enemy of IP protection, basically stealing fables that were in public domain and monopolizing it as their own IPs (little mermaid, Aladdin, tried trademarking "day of the dead" etc). They are incredibly litigious with an army of lawyers that would put law firms to shame.
While the current lawsuit regarding tor wrongful death is harsh, its not surprising, the only surprise being that Disney is using such a stupid argument as TOS to defend against a wrongful death claim. They also prevented a kid from having a Spiderman tombstone, ordered daycares to remove their characters from their murals, and resisted settling on a deadly monorail crash for a year.
To be honest, alot of companies have done some pretty immoral things (BP, Shell, and Nestle being some horror stories). I do think they were more under wraps because it was harder to get access to that news before the internet.
I agree, but unlike the other companies you named what makes Disney's practices so egregious is that their entire image is based on family friendly entertainment. Which is ironic in the Piccolo case because their actions literally destroyed a family.