If life insurance is forbidden, then how is working at a mortgage company which takes commission and interest justified?

I work for a mortgage company which makes it money from commission and interest. But my job title is related to the web, and all I do is on the web. Lately, I been in an argument with my spouse, as she wants to stop a life insurance policy that has her name as beneficiary if something happens to me, because, according to her, it's not allowed in Islam. Thus... If life insurance is forbidden, then how is working at a mortgage company which takes commission and interest justified?