The question does not require a single name, it said who, which can be answered with a list of people or groups of people. Eg. Who did I make love to last night? A: Your parents!
How about Bill Gates? His control of intellectual property law allowed him to almost personally stop the global south from manufacturing their own COVID vaccines and instead have to purchase them from the west. Bill Gates is answerable to millions of deaths. He's one of the most evil people alive but you get weird looks saying so. He's one of the top 5 richest people in the world and has spent the last two decades doing PR.
The question does not require a single name, it said who, which can be answered with a list of people or groups of people. Eg. Who did I make love to last night? A: Your parents!