A worthwhile mission gives talented people somewhere to combine strengths.

Talented people rarely lack ability. What they lack is somewhere their ability adds up with someone else’s instead of running in parallel. A real mission provides that, giving separate strengths a shared direction so the total becomes larger than the sum of the individual efforts.

If you lead anything, check whether people can see how their work connects to the others. Vague purpose leaves everyone optimising their own corner. Stated clearly, the same group starts fitting together without being managed into it.