One of the things that bothers me most about all these breaches is that I can't think of a single reason for many of these companies to store the data, yet they

One of the things that bothers me most about all these breaches is that I can't think of a single reason for many of these companies to store the data, yet they do it, presumably to make some sort of additional profit. Then, when they lose/have that data stolen, its just an "oops! we're doing our best to fix it". Maybe some of these companies can just stop collecting/storing this data if they can't do it securely?