Windows desktop was always driving demand for Windows enterprise, why else would you need exchange servers and CIFS/SMB file servers? Who would buy MS SQL serve

Windows desktop was always driving demand for Windows enterprise, why else would you need exchange servers and CIFS/SMB file servers? Who would buy MS SQL server licences without the larger lock in effect? Maybe they think that the cloud has broken this dependency, but I think they are bringing ruin over the house of Redmond (in the long run)