Hope you get your answers. Nobody is above being questioned. Even good people can fall. There was a renowned Heart surgeon who developed life saving surgery procedures; however, in his later years, he was caught reusing catheters in his plastic surgery practice.
He saved himself $400.00 a procedure by reusing the catheters. The patients were endangered but he saved money.
Of course, you cannot make a comparison between a harmless vitamin and infected blood but it does go to show that everyone should be vigilent and question everyone.