Oh, he was protected (by the Lancet for instance, and by KI here, among others) to begin with, despite some people voicing their doubts, and lauded, very much so, for his experimental techniques, and successes. And a closer look at his claimed results, and former positions, would have exposed him. Once he began killing off patients, his past was looked into, but until then, he was taken at face value.
After he messed up here, he fled to Russia, but even they eventually kicked him out.
He knew that he was a fraud, he knew that he hadn't held the positions he claimed to have held, he knew his research was fraudulent,. His narcissism or grandiosity, or whatever it was, made him continue operating, killing seven of his patients here. The arrogance of this man is monumental, and his career disastrous. He is extremely manipulative, and has lied about being the personal surgeon of a number of famous people (Clintons, Obama, the pope, and so on), and has had a very messy personal life, cheating on his wife and girlfriends, and claiming the Pope was going to host his second wedding, after the divorce hus wife had no idea they were getting.
In every single way Macchiarini is a worse fraud and liar than Arday (whom I am not making excuses for), abd his career was an international one, and yet his story was not discussed clise to as widely as Arday's.
en.wikipedia.org