Look, I am a normal dude who doesn't involve in criminal activities. Life is good then in Singapore.
If you think you can have a career in drug dealing, then you would indeed be very, very dumb to try that in Singapore. The result is that the city state is visibly suffering far less from drug abuse issues than nearly any other city.
And indeed, neither the government, NOR THE LOCALS, are fond of graffiti. If you want to be an asshole and try it anyway, well you know the risk associated.
And yes, even the locals call it a "fine" city as their are fines for a lot of misdemeanors, yet the fine system did change behaviour. As an amusing example, if I am remembering well, you can have a fine for not flushing in a public toilet. This had an effect, you have to keep in mind the poor uncultivated beginnings of Singapore.
Currently the behaviour of most everyone is changed, nobody even wonders if they should apply basic hygienic procedures.
I agree that whipping is draconian and overkill towards foreigners overstaying their work visum. It is luckily enough of a deterrent to strongly discourage the practice.
In general however it is not at all a fascist police state. I have lived there, I experienced it. I would call the non-democratic government rather a kind of "enlightened despotism", and I (and my fellow expats back then) had to admit that they did a lot of things very, very well indeed.
Interestingly, Singapore in the 1980s was the model for Deng Xiaoping who during a visit noticed how you can have good prosperity and strong government influence together. This is how he started the reforms that made China into the economic powerhouse that it is now.