I see it as fraud. She benefitted financially from the sales that otherwise would not have taken place and her clients went against stress test requirements. On individual scale, the buyers might be better off (with current interest rates that's not a guarantee either) but those requirements exist on a macro scale to protect the banking system from collapsing and fake documents have been becoming increasingly common.

I'm not defending impossible housing prices but income requirements would exist even if housing was affordable to most as it's needed to avoid giving out loans that will not be paid back.