A career in a Non-Profit Organization is often only attainable as a paying career on the highest levels of the organization. Because an NPO, by nature, des not operate for money, only the main and highest-level employees will be paid significantly. Often times, NPO's advocate humantarian causes. One can find a fulfilling career in an NPO, or even start one themselves, if he or she plans on fighting for a cause about which they feel strongly. To be a paid employee at a non-profit organization, people will often times gain experience within the organization and move up into a paid position, or they will start their own NPO and make money from there. Much like entrepreneurship, working for an NPO has few solid or official requirements, so this career is best for those who are self-motivated.