i don’t think the group leader/ risk management leader will do that as investor’s invest a lot of money in the project and if the group leader/ risk management leader somehow show that it’s a low risk project and go through with it then this is against professional ethics.This will ruin his/her career and company’s reputation as well if things don’t go as planned.
This is the reason why some companies have a completely different risk management team so as to have a unbiased opinion on the project and be blunt about the risks.