Employees care about their companies they way teachers feel about their students, they care about their success and are generally enthusiastic but that particular interaction doesn't define them and it's possible to be just as happy somewhere else.

Founders care about their companies the way parents care about their kids.

I've seen this asymmetry cause some issues where founders don't get why their employees aren't as enveloped in the company as they are. A respectable salary and less than a percent of the stock doesn't get the same commitment as a founder does.