Killing the tobacco industry for example would have incredibly positive economic consequences, despite the job loss.
Yeah but both tobacco industry employees and smokers vote. If they make up a large enough voter base, then this is political suicide in any democracy.
Hence how it took until 2019 to ban indoor smoking in my EU country, even though it was known for a long time it's a public health issue.
Killing the tobacco industry for example would have incredibly positive economic consequences, despite the job loss.