As south European, I think it is a personal matter, it basically boils down to how much one can adapt to living by rules, without the flexibility to bend the rules one is used to in other countries.

There are plus and minus to both approaches, the rules approach favours more the society overall as everyone gets the same, while the flexible approach kind of favours the individual.

Well, drive half an hour by car from southern Switzerland to Italy and you will notice that the road will be lined with garbage heaps on both sides. There are definitely some advantages if people are a bit tidy. And then try to achieve something at an Italian office without losing your mind. You can always negotiate with the Swiss, and there are always compromises.

See, that is a good example of culture shock, I have zero issues negotiating in Italy.

And as mentioned in other answers I enjoyed my time in Switzerland, and come back every time I manage to, so trying to make my point of view without attacking anyone.