This looks like a fluoroscope, basically an X-ray that is constantly turned on. The tech is looking at a live X-ray view, not a film transparency.
The radiologic exposure for both of them is orders of magnitude higher than a normal x-ray that we think about. A normal xray exposes you for less than a second, this is bombarding him with X-rays the entire time he is standing there.
It's bad for them, but imagine this doctor. He has to examine every one of them every day. If he didn't die of cancer he must not have lived very long.
Just because a guy in the past was a doctor doing shitty things is no reason to shit on x-ray techs. We really shouldn't put one type of work above another.
X-ray techs don't have a hippocratic oath to violate. That's the thing separating the two in this context. If you don't want to call him a technician, that's fine, but he disqualified himself of being a doctor and I hope he got same the cancer he was giving out.
I dont understand why your shitting on this guy. Whats he supposed to do, organize a coup in the slave mine? How do you know the tech wasnt trafficked himself?
Basically the miners there are more likely to be coerced, through things like having been fined and the "pass" system, not trafficked.
In the case of the technician, he is almost certainly a free person. Working class whites normally earned at least 10x the wages in SA mines, even for the same job. But it is unclear whether he belongs to the Apartheid classification "white" or "coloured" (who had less rights and lower pay).
What people are shitting on is his participation in a system of oppression and segregation which devalued the lives of Black people. These mines had incredibly high tuberculosis rates too. He is also using medical technology in a reckless way that causes harm.
But I think you are right in pointing out that to some extent he is a victim of his situation /lack of education, even if he has more privileges and a better situation than the Black mine workers.