It seems like SpaceX is the exception here rather than the other way around. It's not just Blue Origin, but also Armadillo (John Carmack), Virgin Galactic (Richard Branson), and Scaled Composites Tier One (Paul Allen). See https://en.wikipedia.org/wiki/Billionaire_space_race?wprov=s...
There are also a bunch of other smaller aerospace companies, but SpaceX seems to have won the majority of the launches and mindshare.
I think that SpaceX just spends a lot more effort on PR and marketing (a good thing, not a bad thing), and they have a rather boisterous leader (Elon) which generates more awareness and excitement.
In contrast, Blue Origin is spending very little, leading to people questioning whether they are still alive. Blue Origin is certainly out there doing stuff, as other commenters have mentioned.
There are also a bunch of other smaller aerospace companies, but SpaceX seems to have won the majority of the launches and mindshare.