there is a simple peshat here too: someone who was able to get up daily, keep tahora, clean the aron, would be also able to keep a 9-5 job, no just as a cleaner but in another professions.
yes. and your wife who got up in the middle of the night to feed and clean and love your kids, would also be able to stay up nights to work in a kennel and feed and clean the abandoned dogs there, not just as a cleaner but as a humanitarian!