Hardware and energy intensive technologies -- like rockets, satellites and the like -- definitely fail at both the time and cost criteria (and their risk rate is not quite among the lowest). That means that they'll get invested in only by entities which are capable (and willing) of investing large amounts for long periods of time, while willing to accepts significant risk -- which reduces the group to governments, large companies like Google and determined individuals like Musk and Branson.
So, capital is allocated considering a number of criteria, the perceived risk being among the most important. The key word here is _perceived_, as in the late nineties a lot of investors started believing in the myth of endless growth, which significantly lowered the risk they perceived on sock puppets and the like.
As presently any system like that I assume is pretty must bespoke per rocket family.
Yeah, but the original engine was not the standard LOX/kero turbopump affair. The seals were breaking new ground, if nothing else.