Not sure how beneficial it is necessarily for the traveler, per say, unless they specifically want to travel on UA (I know...many on this forum). However, for the corporation, yes, has the ability to raise costs if prices aren't being compared to other carriers. But would likely bring down costs in other ways - no paying Concur a 'commision' or whatever, no extra fees to the corporate for changes, cancelations, etc. And for UA, pretty much guaranteed business (and they probably are discounting rates for that).

If the corporation has a contract to fly specifically UA anyway (I forget the term used in the past - but basically, the corporate contract requires employees to fly UA in most cases anyway), I could only see this as a benefit to the comany. Concur probably makes a lot of money off of simple transactions that can be handled without a middleman.