Most commercial leaders focus only on company wide revenue growth, without focusing on customer segmentation-based revenue growth. This has a lot of disadvantages. First, you are not allocating (marketing and sales) budgets in a way that reflects your revenue targets per customer segment. For example, if you want 40% of your new revenue to come from customer segment Y, then you want to allocate your budgets accordingly. Second, without segmentation-based activities your team has no focus. If all revenue is equally important, your revenue-generating activities (sales, marketing, and customer success) have little focus and prioritization.