Some kitchen helpers wouldn't want to be anything more than what they are now, but they work additional jobs, in the same organization or outside to increase their income. Same applies to some drivers and house staff (cleaners, keeper...etc). Our kitchen helpers, where I work, serve as office clerics and drivers too.

Note: I salute all those who've mentioned they've been working in all sorts of jobs since early age.

Nice topic..)

Salam