Way too broad a question. It depends on which leaders you are talking about, and from whose perspective. While it is currently politically correct to refer to them as “robber barons,” that is too simplistic. Jobs were provided. Colleges and hospitals were built. Products were innovated. Economies were advanced. Sure, it’s easy to complain from today’s perspective about that worker in barely adequate factory conditions working a 60 hour work week, IF you forget they are there because that “robber baron’s” job has allowed them to leave the completely dangerous coal mining job, starving to death working long hours on a failing tobacco farm, etc. gooch needs to be a lot more specific when he says they “took advantage of people who were in need.” If you look at any powerful group, you can focus on the good they did, or the bad, or you can be intellectually honest and try to examine both.