Should we recycle aluminum cans? Probably, because the price of recycling aluminum compares very favorably to using virgin materials, the mining and smelting of which are expensive in terms of energy and harmful to the environment.
Should we recycle toilet paper? We could, at some price. But it’s likely not worth it, because it can be composted, it would be awfully hard to clean and sort, and in any case paper products are actually a renewable resource, rather like wheat. You rarely hear someone saying, “Save the wheat! Give up bread!”