as the titan of foresight, he must've known the price he'd pay for such a gamble too, so there's an additional weight to his now present choice to side with chronos. melinoe's character finds a harsher, more selfish contrast aganst him when these aspects are considered.

her internal drive is focused on restoring her family's name: that is how she justifies her weaponization as hecate and olympus' soldier against chronos, and deeper still, how she allows herself to want the belonging and purpose that she's deproived of and comes with reconquering the house of hades.