lol
I watch these Korean shows online with subtitles and there was this one time where we were counting the number of times we saw this particular extra walking by in the background, all wearing the same clothes, it was a lot.
They aren’t wasting money on extras
Often, the number of extras and their extra total costs and plots to “star” those, who are not stars, kills some of our shows. Nero Wolfe became like a BBC production with all the extras and highlighting of non stars. So a halfway decent show priced itself out of the market.