Likable is a subjective term. What you like might not be what I like. If a person has the characteristics that I listed, people will follow. I don't have to be your buddy to respect you and follow you.
I think likable is the wrong term here. Charismatic, stage presence, high EQ (emotional intelligence) - qualities such as these are common in people who are remembered as great leaders and I don't think that is subjective. I'm not saying you personally agree with leaders who have these qualities, but people with them tend to be able to win over more people more easily this way.
CEOs of large corporations are public figures, especially CEOs of Disney. Sure you could have a public figurehead other than the CEO (case in point Walt Disney was never officially named the CEO). But look at Eisner - similar to Walt, he hosted the Wonderful World of Disney. I'm not saying every CEO of every company has these qualities and it is a must have - but typically the ones who are well regarded and remembered tend to have these qualities. Certainly it should be a desired quality of any CEO as most CEOs have to do PR and speak publicly.
Also - as the leader of a company, it is much easier to get people to follow you and follow your vision if you are charismatic, have that "IT" factor - whatever you want to call it.
Sure, for you maybe if the person can make tough decisions and own them - that maybe enough to respect them and follow them. But not for everyone and not necessarily for the majority of people.
Lets just use an example - lets pretend Disney hits hard times and has to cut the pay of all workers by 10%. Bob Chapek is in charge and he's not the most charismatic person, and as insiders have said he lacks EQ - but he is good at making tough decisions and he says - everyone including myself is going to take a 10% pay cut company wide. He then coldly presents the data on some slides that shows why this will help keep the company afloat and thats about it. He made the tough decision and he owned it.
Compare that to a more charismatic leader with strong EQ delivering the same message who might talk about how much he appreciates his workforce, how he knows how much this will impact people but that he is taking on the same pain and that he will work hard to get things back to where they were and restore pay to everyone.
The Board of Directors might not care one way or another - but the workforce would, and the Board would care if there was significant attrition.
Another good example of this was with Star Wars Galaxy's Edge - when asked why Disney decided to build 2 Galaxy's Edge lands, 1 in
Disneyland and 1 in Disney World, Bob Iger said it was because Star Wars was too big to have it in only one park and that he wanted as many people to experience it as possible. When asked the same question (and not at an investor's meeting), Bob Chapek said it was because it offered a higher ROI and was cheaper for Disney to put the same land in 2 parks.
I think that is what was meant by "likable" though - not whether you like the person or not. There are qualities that some people have that make them more likable in general to people. And for a public figure like the CEO of Disney it is important to have that - not just to address your workforce but to build relationships, make deals with people or other companies, etc.