What should I do about my wife's almost constant lateness in finishing work, knowing that I fear for her from "Filipina-ization" due to almost no one else remaining at work besides her?

Know that some jealousy is praiseworthy, and some is blameworthy. Praiseworthy jealousy is jealousy regarding suspicion, and blameworthy jealousy is jealousy where there is no cause for suspicion. The jealousy that Allah loves is jealousy regarding suspicion, and the jealousy that Allah detests is jealousy without cause for suspicion.

Jealousy regarding suspicion means that a man sees his family committing a forbidden act, or sees them in suspicious situations, such as a woman working in an environment that is not regulated by Sharia, where there is seclusion and a lack of lowering gazes. In such a situation, the husband must be jealous, and the fruit of his jealousy is to admonish and prevent these actions.

Therefore, you must prevent your wife from anything that would put her in a suspicious situation.