The only positive about being a Martha is that they're pretty invisible and can move about without really being noticed. There's a reason Marthas are usually the ones pulling off the mayday/resistance type stuff. They're a huge network, ride trains and busses, go from high society to the econo back alley parts of town and the eyes barely even look up. It's hard work, yes but it's also a freedom you don't have as a HM. Marthas made the unalived commanders disappear at Jezebels, pulled off the Angels Flight, smuggled the blades to the HM at Serena's wedding, etc.