They have their own horse in the race. They have to answer to hospital adminstrators and malpractice insurance attorneys and themselves about their involvement and formal opinions.
BTW, who is paying these uninvolved medical experts?
many will help ouit in this type of situation pro bono at university hospitals. MD's are salaried -take on difficult cases for second opinion, advice, etc. Regarding administrators, malpractice insurance companies answering to, quite simply not true. Number one cause of malpractice suits in the US? like to know? It is one doctor disparaging the work of another. Look it up.