If you're doing contract development that can be done half as well for a quarter of the cost by an offshore team, you are not doing consulting. You are competing in an arena that you will never be able to win.
If you want to consult for good money, you have to create your market and you have to have the confidence of that market. You have to be able to give C-level execs advice that they want in a language they understand to solve the problems that they deem important. The vertical market is just as important as the horizontal one. In other words, a CRM expert is generally valuable. A CRM expert that can provide technical, management, and executive strategy solutions in the healthcare space is extraordinarily valuable. The very strong technical guy can be worth $2-300 an hour if he knows the right software and knows enough to put himself in the right position. The vendor that has brand recognition and a consulting team built around their product is worth more. The consultant who knows the ins and outs of the vendor relationships and how they fit into the big picture of solving the customer relationship problem and can throw together a comprehensive multi-year strategy that differentiates the client from their competition and will have a positive effect on the stock and market position is the consultant that makes good money.
You don't get to be that guy by being the best developer or by having a history at one of the big three. You work your way up the ladder, make a difference, and then offer that difference to someone in a parallel position. You build out a team, a strategy, and a marketing plan that puts you in a position to drive.