Is all income used by the 1% reinvested back into the economy or spent productively? What about stock buybacks? From 2003 to 2012, over 100 major corporations expended 53% of their corporate profits, or $2.4 trillion USD, on repurchasing stock (HBR). Another 37% went to paying shareholders (HBR), so about 10% was spent on capital, wage hikes for employees, etc. The HBR article was published in 2014, but more recent data suggests that stock buybacks currently constitute a significant chunk of corporate expenditures, often to the tune of 100 billion dollars or more per quarter in 2020 and 2021 (CNBC). Even when firms do spend their money "productively," its often not all that beneficial for us in the long term. Abbot Laboratories destroyed hundreds of thousands if not millions of rapid Covid-19 tests during a "trough" in Covid-19 reporting and laid of 2 thousand workers. Then, when the delta variant emerged, the company surge-hired workers to produce more. Is this productive?
I'm sure industries do innovate. New medicines are being made all the time (though a large percentage of medical firm profits are spent on advertising, either directly to doctors or through TV ads). The medical industry also overspecializes, invests heavily in expensive healthcare tech, and pushes uneeded treatments into patients. Innovation occurs, then, but at the cost of the consumer who cannot afford the "best and newest" healthcare treatments. Patent abuse, too, allows for medical firms to forego innovation. If a firm can change one or two ingredients to a drug and prolong its patent, thereby preventing a generic version from being made, does this not affect companies' motive to innovate?
It may be the case that corporate wealth tax-hikes, by themselves (that is, with no other redistributive policy being passed after) may reduce innovation. However, a) tax revenues can be spent productively to reduce poverty, incentivize R and D through targeted tax credits, etc., thereby fostering long-term innovation and b) companies' quashed innovation under a higher corporate tax bracket may not serve a human need. Pogs, technically, were an innovation. Silly bands were an innovation. Musk's flamethrowers were an innovation. Are we to believe that the money used to create the above inventions could not be better spent elsewhere? For that matter, can we not think of better ways for "celebrities'" income to be spent?
I won't comment on the efficacy of the wealth tax. Suffice to say, billionaires are skilled at dodging regulations, and just because new tax revenue enters government coffers does not mean it will be spent on programs that I support either (although, it could mean a lesser tax burden for the middle and lower class if a tax on wealth is implemented). But, wealth is not always spent productively nor in the best interest of consumers. Furthermore, we have a graduated tax system, so (notwithstanding loopholes and legal folderal) those in higher tax brackets pay more income tax. If this system does not augur innovation, then how can it be that we've experienced a surge of tech developments over the past couple decades?