The entire point is that it's deeply screwed up for you to need to hide your wealth from your neighbors--or from some set of neighbors but not others--for fear of being robbed.
That's not the point of the commenter. Secondly, I reject your summary opinion that lacks evidence, but you are welcome to your own feelings.
That's a normative statement, not a positive one. I don't consider it at all screwed up or intrinsically wrong to want to hide my income from my neighbors.
And if it is significant, it would probably be worth a lot more than the security cost. Its economically senseless to reject a better job position for the fear that someone might notice your increased income and rob you. For the vast majority of people that would be utterly ridicolous.
Especially with all the factors to consider (neighbors, location, salary, relativity to peers, etc.)