You mean our pension funds?
Firstly, pension funds hold some share of stocks, but far from all. Second, pension funds hold a share of a pie that's not all that came out of the bakery. The bakery made a lot more dough, but much pie was spent (horribly mixing metaphors) to buy assets like property and private investments. So in reality pension funds hold a fraction of a fraction. Third, pension funds invested in equity is a replacement for the old pension systems of yore where companies were forced to set aside money and invest smartly to fund guaranteed income pension plans. They don't have to do that anymore. Instead they contribute to a 401(K) or similar in other countries, which lowered their costs and reduced company risk. For listed companies, those savings went to the shareholders, of which pension funds were just a fraction of a fraction.
I hope this illustrates that we, the salaried workers, see only a small fraction of the value created by increased productivity.
"Reasonable" is doing herculean amounts of work as usual, as it is implicitly operating under a thief's logic that the target didn't really deserve it anyway therefore if I steal all of it I will be justified.
We see the same shit when regiemes 'nationalize' segments of the economy and then wonder why instead of miraculously getting better without the 'exploiters' things turn to shit and absolutely nobody wants to trade with them. Empathy such a foreign concept to them that they don’t understand why merchants refuse to trade with those who steal businesses wholesale. Whose only response when confronted about their crimes is lame whataboutisms and victim blaming.
Let's say, "If we had a tax system that captured a greater share of the increase in profits resulting from higher productivity (which mostly goes offshore and does not in fact "generate more jobs"), then we'd have no problem at all funding the pension systems, and much more."