Because taking advantage of market failures is much easier to profit from than producing actual value, and neoliberal political ideologies prevent us from correcting for that with regulation.
I'd value my kids being taught well, me taken care of if I'm in a hospital or old etc. No machine can compete with the human care. Machine can help, but not replace a human.
This is not a satisfactory answer. First, "human care" is not a direct way of "producing value". Second, if these are the only " interesting jobs" we should be taking, how would society be able to afford it?