Thanks for the reply.
I had noticed the difference in hours as well.
It could be considered unfair if locals are getting a better schedule than expats(or if it were the other way around).
But, my question is more about passing checks/upgrades in the company(whether there is a lower standard for one group over the other whichever way it might be) which could be dangerous.
I have absolutely no evidence that this has ever happened, I was just curious if this was the case. Not as an individual occasional one-off situation due to some biased individual but as a general rule across the board.