The Jargon File (version 4.4.7, 29 Dec 2003):

pointy-haired
 adj.

    [after the character in the Dilbert comic strip] Describes the extreme
    form of the property that separates suits and marketroids from hackers.
    Compare brain-dead; demented; see PHB. Always applied to people,
    never to ideas. The plural form is often used as a noun. ?The
    pointy-haireds ordered me to use Windows NT, but I set up a Linux server
    with Samba instead.?