It appears that the problem with WHO is the same as many...

It appears that the problem with WHO is the same as many organizations when leaders forget the aim of their organization and start following a political or financial aim, IE getting personally power hungry and rich

We see it with companies where the directors accept a takeover that benefits them but not the shareholders
Politicians who forget their constituents and work for themselves

It is a danger in any leadership when there is no oversight, others in WHO told a far different story to what the top leadership told but were howled down

So it is not the people but the system which is at fault