Might as well be phrenology otherwise.
The sort of group psychology and doublethink that allows us to ridicule this dated pseudoscience on one hand, while walking right into a similar situation in every American airport today, is inherently fascinating.
Sure, it's not at the level of secret Plutonium injection, but still...
It's certainly preferable to have consent before gathering clinical data, but I wouldn't make too big of a deal out of this. In the annals of things done without proper consent, this barely registers.
Its actually amusing; these captains of industry were such sheep when they were young. Makes you wonder when they grew a backbone, if at all.
Will you also tell me that employees can't sue for unpaid overtime, hazardous work environment, sexual harassment etc. because nobody held a gun and they could always quit? Such sheep, those common workers.