It’s not about trust in that context. He controls their money. She wants to do some things with money she earns, and he says no. So she does it anyway since some of it is her money. The better comparison is trusting an app developer vs her employer. She’s lucky enough to have a very trustworthy employer; many are not.

I dunno, I think you're making too many assumptions. Do you know she is capable of managing money better than her husband? Maybe he really is protecting her. If their collective income improved a lot, how do you know the husband wouldn't spoil her? I mean, after 13 years, I'm pretty sure they have some kind of understanding that goes beyond male domination = bad. If you know he is controlling and abusive then fine, but this generalisation is not the best of arguments. It's really no better than a politician pushing for laws "to protect ud" for all the same reasons. Care to imagine what would happen when the husband finds money on her phone? I understand your POV is from a good place but just too many assumptions about cultural differences, wanting a round peg to fit into a square hole.