Looks like they play the same game there as they do in the US. Get most of their income from investment vs actual salary, and of course the investment is taxed less than regular income.
For the same reason my transportation costs to go to work and my housing costs are not tax deductible.
We're not tge protagonists of the story, so, fuck us.
I hate to admit it but it seems that way. Our social systems, transport, healthcare, etc. were severely degraded by rightwing policies, and now many people voted for an even more rightwing party, as if they are gonna clean up the mess. Fucking idiots.