This happens because the worse the service the more money they get. “We need more funding” is their common cry but the marginal dollar provides zero or negative value as even more corrupt leeches flock to the system to extract all excess dollars.
In civil engineering, risk is taken seriously and the cheaper pitches are less-often taken. In IT, decision makers don’t yet understand the risks so they always accept the lowest bid.
That project finished rapidly. The reason for that is that it was important.
Most infrastructure is unimportant. We don’t need it. There is no marginal economic gain to it that justifies the spend (in time, and money) unless accounting for the political support provided by local pressure groups.
The behaviour is actually universal. Berlin wastes money on Linux conversion through the same process. Governments are governments wherever they are.
Sweden isn’t this paradise of non-corruption you think it is.