To anyone interested in the topic, I recommend reading Duflo & Banerjee's 2011 book "Poor Economics". They pioneered the approach of using RCTs to test interventions in fighting poverty (for which they received the Nobel Memorial Prize together with Michael Kremer). They go into a lot of factors as to why poor people get certain economic outcomes, including but not limited to the poverty trap theory, and take a refreshingly "humane" / respectful view towards the people they are dealing with.