Some day, Sisyphus will reach the apex of the mountain.
He and his rock will rest, forever at the mountain top. Sisyphus will update his resume, perhaps contemplate going back for his Bachelor's degree, and seek out gainful employment in something a bit more white-collar.
But, as Camus once noted, myths are around for us to breathe life in to them, so as long as people need the differences between an overhead and an interactive white board explained, neither Sisyphus or Instructional Technologists are going away.
And neither will update their respective resumes.