In a "lost wallet" experiment, the Swiss proved to be the most honest people among those studied: they returned the wallet (without the cash, but with the key) in 73 percent of cases. The Chinese were found to be the least honest, returning the wallet only in 7 percent of cases;
Such integrity and civic trust do not stem merely from democracy. it is result of their high income, strong social security and cultural trust.
According to WHO data, Switzerland has a suicide rate of 9.8 per 100,000 people (2019). For comparison, WHO figures show rates of 14.5 for the USA, 21.6 for Russia, and 21.2 for South Korea. It is also worth noting that euthanasia is legal in Switzerland, which implies that suicide is less stigmatized there than in other countries;
imo, these are result of their world class healthcare system, preventive care policy and active lifestyle.
According to 2021y data I found online, Switzerland has the smallest shadow economy among 31 European countries (it stands at 5.8% of GDP, compared to 13% in France, 16% in Belgium, 22% in Poland, and 32% in Turkey).
Primary reason for lower shadow economy in Switzerland compared to Belgium are tax burden, labor market regulation, institutional enforcement etc, its not the voting system

Anyway, you will understand if you just look at the neighboring European countries. Although direct democracy is unique system but economic policy, taxation and regulation play the most significant role in everyday indicator such as public health or integrity.
Switzerland has significant Gini coefficient between ultra wealthy and ordinary people. Belgium is one of the most egalitarian countries in Europe. Our robust social security and welfare system ensure greater protection for ordinary citizen than that Switzerland.
Belgium is one of the few countries in world where wages automatically rise in line with inflation. While corporation and capitalists enjoy significant advantages in Switzerland, rights and job security of ordinary working people are much stronger in Belgium.
Switzerland's healthcare system is excellent yeah but cost of private insurance place significant burden on ordinary people.
Belgium's social healthcare model is far more affordable and universal.
So direct democracy is merely one specific model. The extent to which country's people are secure and enjoy equal opportunity depend on that country's social welfare policy and labor right.
