No it doesn't depend on what the "company want you to do." Operational requests and preferences are just that. As the Pilot-in-command, the decision ultimately rests with you. As Rabcnesbitt correctly states in the last (but one) of his posts, the whole operational structure has a collective responsibility for the safe conduct of each and every flight. They all have their own legislated obligations and responsibilities, but once the flight commences, until it ends, absolute responsibility rests with the commander, who not only "can" but must make whatever decisions are necessary for the safe conduct of that flight, no matter what is operationally preferable.
Commanders should be promoted to the position, only after they have demonstrated the necessary experience, aptitude, maturity, common sense and knowledge for the role. As with any new appointment, inexperience needs to be tempered with limitation adjustments and appropriate mentoring. The role, and the responsibilities are however the same whether the commander has 1 hour in that position, or 20,000 hours.
I say this without any implied reference to this accident, but simply to correct some of the misconceptions being displayed by some people contributing here, who don't seem to understand the role.