Imagine someone in accounting having a Bitcoin wallet on their desktop. Not only would the accountant be able to copy that wallet and take it home for later use (or skipping the country), but so would IT and possibly anyone else on the corporate network.
I am not saying that Bitcoin is not able to be used in such an environment. Just that the processes and software/services have not been properly vetted yet to do so.
This is false perception since anyone in IT can already do whatever he wants to "someone in accounting".
Also people in accounting do sign "NDA" and all sorts of contracts, so it would be unwise to do anything that stupid.
However it would be much harder if not "impossible" to "get" BTCs back, like it is now.
But it would not be so hard to implement some kind of verification system, where accounting would be limited to send BTSs only to certain addresses where after that, validation and verification would be required by "senior staff" or something.