It's not true that all of the gains are captured by investors.
Alphabet's CEO makes about 1000x the average googler, but that's only about 1% of salaries. What I mean is that for every $100 a Googler makes, about $1 goes to the CEO. It's not like top executives are claiming ing most of the value for themselves, the majority of the value a worker generates is returned to them in their compensation.
There are reasons beyond direct redistribution of the CEO's salary to take issue with the vast inequality represented by that 1,000X. The board and CEO will place all of their network in the executive ranks, cutting off access to rank and file employees. These people also use their out-sized reward to have a huge impact on society at large outside of the company. The negative externalities created by exec compensation are borne by the public.
Alphabet's CEO makes about 1000x the average googler, but that's only about 1% of salaries. What I mean is that for every $100 a Googler makes, about $1 goes to the CEO. It's not like top executives are claiming ing most of the value for themselves, the majority of the value a worker generates is returned to them in their compensation.