Some estate kinder managed by NGO will consider their mission as serving the community.
If you earn $200000 a month, I guess they may not favour your child for 2 reasons:
1. You are probably not the sector of the community most in need to help for "whole-day" class. The aim of whole day class of these schools are mainly to take of children whose parents are working and not much money to employ a maid at home to take care of children.
2. It is natural to think that you apply this kinder simply for "back-up". You have lots of choice for private kinder with very high income.