The problem is that Singaporeans are so self centred. Contrary opinions to the rhetoric of public demagogues is viewed with suspicion. Denial, prejudice is rife in a society created by the teachings of one man.
Looking at the culture of SIA. As an expat, you are a "foreigner". Expressions unfavourable to a Singaporean or perceived as such, are dismissed as "rantings " of "foreigners".
There were a bunch of new commanders, promoted from the 747 classic who were known as the hitler youth. Their standing on the classic was as Trainig First Officers, prior to their promotions. As captains, they bestowed it upon themselves to agitate and cause disruption to the careers of many of the newly recruited expat first officers. The company knew about this, but allowed the captains to operate with impunity; their racial slurs born of their own institutionalisation.
"Singaporean values", the rantings of the avaricious many, gorging themselves, unaware of their own impotence.