People become mercenaries for a variety of reasons.<br/><br/>They lost everything<br/><br/>Their term of service in the military ended and they really liked what they had been doing<br/><br/>They got into debt and essentially selling themselves was the only way out<br/><br/>They felt helpless for a long time and it was a way to feel powerful<br/><br/>They had a skill that was needed and discovered that they could make a lot of money