The elefant in the room is the cost of quality. In what situation can we cheaply improve quality and when is this impossible? Not adressing the cost of quality

The elefant in the room is the cost of quality. In what situation can we cheaply improve quality and when is this impossible? Not adressing the cost of quality more or less unconsciously lets one gravitate around products for the rich. One can observe this where the author writes:"There’s a reason high-end car manufacturers boast about their handcrafted cars. Something so premium that an individual person spent time obsessing over the details. Some even prominently display a plaque on the engine with the signature of the engineer that built it." It is easy to talk about the importance of quality with high premium products in mind. But what about low budget products for the masses? Can we say more about this than the cliché that quality might perhaps be cheaper in the long run?