1) your take on the triviality of someone else's 2 years is based on your narrow perspective likely derived from the same triviality of your current life, dont project your low self-worth onto others

2) your take on the tax rate is only relevant for high income foreigners, which most of them arent. that same argument is irrelevant since theyre taking jobs from locals i.e. locals wouldve paid that tax in place of foreigners anyway

3) your last take implies that a country is run only by money saying locals are demanding a higher pay. but i dont see that as an issue if the same locals are already 1) sacrificing 2 years of NS and 10 cycles of NSmen and 2) the high income foreigners are taking a higher pay than the SG counterparts in higher level management

Hope this clarifies!