Reputational damage happens anyway, once news of the first breach/ransom goes out (which it will, it’s increasingly mandated by law). Second time around they might as well fold.
A prolonged extortion scheme can only be done on a low-scale highly-targeted basis, where you can ensure word doesn’t get out.
To a criminal that's easily worth an ask of 5BTC - or perhaps x% of annual profits in perpetuity.
An extortion scam is likely to be worth more than the data.