Booze: Yes, after 9pm you can buy booze in a bar, with all the mark-up that implies. But most Indian workers do not drink in bars. Frankly, I feel infantilized if I am forbidden to buy a bottle of wine after 9pm.
Corruption: Yes SG is not per-say corrupt. A few weeks travelling through S E Asia will certainly demonstrate that. But, as I stated, in the publicly funded institutions I worked with, I saw multiple low-levels instances of self-interest placed before the common good. So many I could write a book on it.
Cars ownership: I stand by my comment. Car ownership skyrocketed around 2008-ish (Im bad with dates). I know for a fact that this has been discussed as a problem at the highest levels of government. Ease of travel is one of the key quality of life factors.
Refused service by taxis at change shift period: this happened to me routinely. I am amazed that it has not happened to you.