Accountability.

The alignment between a company's product and its brand is critical to its longevity because it helps establish a clear and consistent identity for the company in the minds of customers. A strong alignment allows the company to communicate its unique value proposition and differentiate itself from competitors, leading to greater customer loyalty and trust. It also helps the company make informed decisions about product development, pricing, and marketing, ensuring that all efforts are consistent with the brand and driving towards the same business objectives. Ultimately, a strong alignment between product and brand leads to a more cohesive and successful company, which is better equipped to weather changes in the market and compete effectively over the long term.