The stockmarket is now run by computers, algorithms and passive managers
"Computers and algorithms" is just a synonym for people; people implement ideas in code, design the algorithms, pick the weights for training machine learning, etc. No matter how many levels of abstraction you go through it's always people at the top. If anything happens in the society there's always a person who made the decision to make it happen somewhere. Deferring that responsibility to "computers did it" is dangerous bullshit.