Comparing theft of a product with the intent of resale to theft of a product with the intent of personal consumption is disingenuous.
Stealing something to resell it for a profit is rightly a much worse transgression than stealing it for personal use, as you're only denying a single potential sale (your own) as opposed to actually stealing multiple REAL sales and keeping all the profit.
It's not hard to argue that only the one that involves money is theft.
Not that that argument is exactly where I would stand, but I think you're on shaky ground to call them the same crime with the difference being magnitude.
Stealing something to resell it for a profit is rightly a much worse transgression than stealing it for personal use, as you're only denying a single potential sale (your own) as opposed to actually stealing multiple REAL sales and keeping all the profit.