> "It's otherwise billable time, don't see why you'd have a hard time respecting that from a candidate."

Sure, as long as the business gets to deduct the cost of the interviewers' time from that. Not gonna work out in favor of the candidate but respect is a two-way street.

After all, once the candidate (or a candidate, anyway) joins the team, it's their billable time being spent reviewing and interviewing other candidates too.