Sometimes, the customer will get in its own way and prioritise something other than its own users. It will think in terms of ease, or cash, or vested interests. It will make short term decisions. It will look the other way for reasons that make some kind of sense but not in any way they could or care to explain (and why should they?).
But, you don’t have to follow the same lead. If you only have one customer, then maybe. If you have only one customer but want more, then definitely not. You have to prioritise whatever is good for the user. When making product and planning decisions, whatever is good for the user. When choosing between competing priorities, whatever is good for the user. When weighing between investing for the few or the many, whatever is good for the user.
Skippy strategy: Whatever is best for the user.
Get a daily nudge by subscribing to email updates.