Considering some of the atrocious numbers I've heard thrown around regarding piracy on the PC, DRM that scares off some customers may be the result of some exec

Considering some of the atrocious numbers I've heard thrown around regarding piracy on the PC, DRM that scares off some customers may be the result of some execs doing some hard number crunching. Something like: At current estimates, we sell 1m copies, and we'll get 5m pirates. If we put in really restrictive DRM, 100k of those original 1m sales will be put off, but we'll pick up one tenth of the pirates, putting us on 1.4m sales. Worth it! The problem with this calculation is that the pirates are often based in 2nd world countries that don't have a culture of paying for media (e.g. Russia) so preventing piracy won't boost sales from these countries. But have you folks ever tried to convince anyone with money on the line that piracy numbers != lost sales?