More than wealth determines how someone lives and belonging to certain lifestyles always carries a certain trade off of benefits and costs. Cultural barriers may be impossible to breech between certain lifestyles.
The government decides what is illegal and the criminal organizations form to take advantage of those laws. Punishments can vary widely between systems and even blocks within a city, so knowing them will help characters survive.
A unique aspect of technology in that the role filled by droids is that of servants. The introduction of droids creates a radical shift in lifestyle, culture, crime, and wealth which can be good or bad depending on which end a person is on.
Transport is another part of society with the ability to radically alter how things are done. Draft animals can be replaced by machines, the ability to fly or go into deep space is introduced and cultures mingle much faster although in potentially more hostile ways.