If someone who is high status lacks status regulation emotions they will be nice to a person with low status who seeks help from them and treats them as an equal.
That's the opposite behavior of what's commonly called having an ego.
More generally, someone who lacks status-regulating emotions won't have a fragile, hypersensitive ego, i.e. what most people (though by no means all) usually mean by "having a massive ego" or an "ego problem". Note that by this definition, many people whose self-esteem is founded in clear and verifiable achievements would be said to "lack status-regulating emotions". In many circumstances, it's not viewed as a negative trait.
Todays xkcd
I guess there'll be a fair bit of traffic coming from people looking it up?