C-Suite are the top level of the company. Above them is only the board of directors, whose power is limited to firing the C-Suite if they don't like what they're doing. In day to day operations, the C-Suite controls the entire company.

No they're not, they're executives who can only be fired by the board. Equating them with line-level employees is somewhere between naive and isingenuous.

C-suite are officers. Officers have more responsibility for the conduct of the company than employees.

C-suite are officers. Officers have more responsibility.

Sure, and Elon Musk is just a Twitter employee