Because basically the only difference between a [$$$] consumer GPU and a [$$$$$] workstation/server GPU are software and a few extra memory chips (little bit hyperbole). If businesses could have been buying [$$$] GPUs and doing the same things they need to do on [$$$$$] GPUs (e.g. GPU Partitioning), Nvidia wouldn't be where they are right now.
Because basically the only difference between a [$$$] consumer GPU and a [$$$$$] workstation/server GPU are software and a few extra memory chips (little bit hyperbole). If businesses could have been buying [$$$] GPUs and doing the same things they need to do on [$$$$$] GPUs (e.g. GPU Partitioning), Nvidia wouldn't be where they are right now.