Samsung

C-suite is posturing. They are the type of employee considered salary-exempt. Most likely they already are working 6 or 7 days a week. You don't get to that level without constantly thinking about or doing work.

Everyone at that level is watching some aspect of the company or dealing with whatever bullshit they need to. They may have assistants to filter what comes through and they may take some days off and be out of the office. But it's not like at that level the work ever really stops.