Well, they're entitled to legal counsel too. Some attorneys choose to specialize in them. Glenn happens to be one. Depending on the wrongdoing, these securities cases can easily turn into criminal lawsuits. So, it's a good idea to hire someone who has more experience than just doing regular filings.
Most attorneys representing public smallcaps get paid extremely well. Many smallcap officers also give themselves far more compensation than they would ever receive doing the same amount of work for a large cap. This is easy to do even if your company generates no revenues when the public picks up the tab.