That is a very good question! Unfortunately, most attorneys are running a business with their law firms and have to make money to feed their families and their employees' families, so they often chase the money--the deep pocket defendants. However, there are some laws written that award reasonable attorney fees to the "prevailing party," and that often motivates attorneys to take on difficult lawsuits for clients who really can't afford to pay an attorney. For example, sexual harassment cases award attorney fees, so many attorneys are attracted to that area of law. As an example of money as motivation, personal injury attorneys by custom can contract in their retainer agreements to take anywhere from 25-50% of any recovery plus costs, so there are a lot of personal injury attorneys and very little risk to putting in 3-5 years on a case. Another consideration is that human rights law is only recently being taught in law schools and isn't on any bar exam that I know of, so attorneys would also have to educate themselves and gain experience on their own. Lots of changes needed to be made in our legal system!