Why does enabling a service in RHEL 6 does not enable any dependent services?

Issue

• When I enable a service using chkconfig and that service depends on other service, the dependent service is not enabled.

• For example, the numad initscript contains the following LSB-style init stanza:

  ### BEGIN INIT INFO
  # Provides: numad
  # Required-Start: cgconfig
  # Required-Stop:
  # Should-Start:
  # Should-Stop:
  # Default-Start:
  # Default-Stop:
  # Short-Description: numad control
  # Description:
  ### END INIT INFO
  

• Why does service cgconfig remain disabled (and numad fails to start as a result) after running chkconfig numad on?

  # chkconfig --list | egrep cgconfig\|numad
  cgconfig          0:off   1:off   2:off   3:off   4:off   5:off   6:off
  numad             0:off   1:off   2:on    3:on    4:on    5:on    6:off