this is a major part of why I'm generally more philosophically aligned with the B2C SaaS startup approach, as it's much easier to scale up to target large enterprises than to scale down to target smaller consumers
having many small users drastically increases your learning rate
the practical upshot is that if it's feasible for ur problem space, to start off by targeting the low-value market segment, investing in quicker iteration & lean ops early on; you'll be more likely to arrive at an optimal equilibrium prior to locking in strategy during scaling