That's not true. If any company loses revenue is has a lot of places to dump that loss. One is shrinking profit margins, another is raising prices, and another is lowering operating costs like labor, but also pulling lower-margin items off shelves and all other manner of cost cutting.
Let's oversimplify dramatically and say that every single lost dollar is paid through cutting the workforce. You're ignoring the fact that people benefit from the theft: those who need food and are able to steal it rather than going hungry. How do you know that feeding those people is worth less than employing the workers lost to their theft?