Frankly speaking, for a long time I have had a significant problem with the civ series' idea of a scientific victory.
Like, let's assume some country - say China - manages to send a succesful mission to Mars all by itself. Good, China gets a lot of prestige.
So what?
When the Soviet Union or the US had their firsts in the space race, sure those were very prestigious achievements, but they were still dominated by the global discourse of those being achievements of the
entire humanity rather than those of the particular empire. Which makes sense: seeds allowing us to go to space were growing for thousands of years of global scientific and economic accumulation. It's not like Americans did the job exclusively with the millenia of work of American scientists, or as if the famous bronze age Soviet or American civilizations
could get some laurel on their heads for eventually leading thousands of later to the Moon. Even if Greeks or Indians got this job done, continuously pursuing physical sciences since 6th century BC, it would still feel strange for me to treat it as "their victory". Space exploration is simply a common achievement of all humanity.
Also, for any civilization to develop space race tech it needs to be extensive, as in huge in size. You may have the most utopian and technologically advanced society (Nordic states or Singapore or whatever) but you shall still be beaten by a miserable and even somewhat backwards! country such as Soviet Union which simply has much bigger total sum of capital of all kinds. Would anybody seriously say that 1950s Soviet Union were the peak of global innovation, technology, education system, freedom of thought
etc and Switzerland or Sweden "lost" compared to them? Or that modern China is clearly more scientifically developed than Switzerland, South Korea, Sweden or Singapore because it can potentially send people to Mars and they cannot?
Likewise, there could be a civilization which was scientific superpower for 90% of the human history, and then it enters relative decline and some random newcomer with almost zero prior history of science takes up its tools and ends up being more advanced in 2050 AD - who deserves "scientific victory" in such case; the late ultimate champion, or the titan on whose shoulders it was standing?
Personally I think more sensible scientific victory would be the one accumulating scientific achievements across all ages, and then combining the titles "okay so you win because you invented astronomy, calculus, quantum physics and genetic engineering, whereas your rival gets second place cause they were first only in space and medieval surgery". I imagine something akin to the cultural victory of civ5, where you kinda have to work for the entire game to get it, though later eras get exponentially more important in the overall task and you can allow some room for early backwardness.