"whoever tells you to run the study" is basically whoever approves the grant, so either a business, the government, or a university (indirectly using the governments money). all three are corruptible in their own ways.
If a Business is wrong, they go out of business.
If a University is wrong, they teach it for the next 10 years.
If a Government is wrong, they go forward with the policy until the next regime change.
One of these is different from the rest.
in general i trust businesses a bit more than governments, because I find it easier to dissect their motivations, but either can be greatly incentivised to distort scientific findings.
So I miss how Business being different from University/Government is helpful to even analyze the problem.