I'm thinking lawyers might, by the nature of their profession, provide more value than devs though, since they can keep you out of jail or prevent you from being seriously screwed in a deal, while a dev is mostly just increasing your revenue/profits by extending your software. Also, lawyers are able to provide value within relatively small timeframes (compared to developing something meaningful), which makes high hourly rates more acceptable to clients (as clients are mostly interested in "how much for not going to jail" total amount, not the hourly rate)