Of course companies try harder to meet the shareholder expectations than customers. It is not hard to understand why.
You must keep the shareholders happy with stock growth, dividends, profitable forecasts, and strong business plans. If you don't, and they lose confidence, your company can lose half its value in a heartbeat. Then you are done and have to sell out or fold up the tent and go home.
Now, keeping (or delighting) customers satisfied is one component of the above factors in shareholder satisfaction and confidence. People buying your product is a key to staying in business, right ? Not doing so will slow or stop the growth and profit. However, this is usually a slower process than losing shareholder confidence and there is time to correct it over time. (Hope springs eternal for consumers. After all, how long have we all been patiently waiting for another great calc ?))
...but make no mistake, the shareholders hold the reins in most companies and the CEO's know it.