Code is more dangerous than data. Personally, I'd be most worried by someone getting a virus that hacks into other computers and encrypts them and/or wrecks the network. Both can be protected against, first by cold backups and second by resilient / disaster recovery network, but both would also severely affect the company for a few days, so I'd rather avoid them.
even setting up a new box might take one day of a productive person's time... unless, of course, if you standardise the dev setup... again many devs will complain, probably more than if you just remove local admin :D
Code is more dangerous than data. Personally, I'd be most worried by someone getting a virus that hacks into other computers and encrypts them and/or wrecks the network. Both can be protected against, first by cold backups and second by resilient / disaster recovery network, but both would also severely affect the company for a few days, so I'd rather avoid them.