NOT FIT TO WORK... its not fair if they are the one to decide

this happened to my friend i just want to share it because for me it is not in human.
i have a friend who got a work as a sequencer band (they are four members in a group) in Oman. so it is a standard proceedure to undergo medical check up. of course to be sure that they are FIT TO WORK. they went to an office that they wil just get a paper and they are the one who decide where you are going to go for the medical check up. when they got in that office they caught the sign there said "we dont accept second opinions" and my friend was thingking that sounds scarry. a lot of what if rushed inside his head.
as the check up went on, they said he needs to get 2 teeth extracted so he just follow the lead. he was really so desparate to go out and work abroad for the income here is not good. then they said he needs to pay 3,000 pesos (around 74 dollars) for eye glasses they said his eyes are not 20/20 vision. from what they say he step back and said:wait i dont have 3,000 at hand." before he went home he went to a eye doctor just to make sure if it is worth to pay the medical that much money for an eye glasses. the eye doctor told him he had perfect vision. so when he went back to the medical center he told them that he dont need the eye glasses because he has perfect vision. after what he said problems rush in. the chest doctor said he has tuberculosis and need to drink some medicines. the other doctor said he has hepatitis B. at the end of it they stamped his documents NOT FIT TO WORK. it was not really fair. they are the one who decide who will work and not. he still ask for a second opinion because he got scared when the doctor told him he has hepatitis b. i feel sorry for my friend. and because he is not fit to work as they said he cant apply to work on other middle east country.