The conservative spin is that
1) it is great that there are 3 jobs for you to work, in other countries, sometimes there is not even 1.
2) would you still be willing to work that much if we increased your taxes ?
3) it is great that you don't have to use mass transit to get to work (no way in hell does someone work 3 jobs by taking mass transit because it takes a lot longer by bus than by car)
The Daily Show did a great correspondent bit on multiple jobs, making fun of liberals (yes, they poked at the Dims on the Daily Show.)
They featured this lunchlady who had won the lottery and still kept her job as a lunchlady and her weekend job (whatever it was), and the correspondent was (sarcastically) lambasting her: "You should be ashamed of yourself! You just won the lottery and you're preventing two people from having jobs in this horrible economy. Two families are starving because you're a job-grubber."
It basically summed up how the Dims feel.