I recently got roped into one of Palantir's recruitment events (because I am a pathetic sucker for free beer), and they were making a really big deal of how they billed by _outcome_ rather than _time_. At the time I just thought that they were trying to differentiate themselves from Accenture/KPMG/Deloitte/etc. but I see now that billing by outcome is also a nice way to get around billing caps on hourly rates.