I agree with
@sophisticate that ambition is difficult or even impossible to measure on a communal/societal level, it's highly personal and relative. Ambition in the sense of motivation fluctuates in its intensity depending on the stage of your career, education or business etc. that you find yourself in. It is not needed in every step of the way, although it can make your path easier and more worthwhile at times. If you mean ambition in the sense of being goal-oriented and committed to something than I'd say that it is absolutely necessary.
I think what you are trying to get at is the subjective observation we make from time to time that we as Somalis currently don't have a state that reflects the archetype of a productive society so we infer from that a lack of ambition in the general Somali population which would be incorrect imo. Just look around you or even in your own family or yourself and you will find plenty of Somalis achieving their goals/dreams in whatever capacity they deem fitting and fulfilling. Also agree with
@Primordial second post, if anything Somalis are universally noted for their business-oriented spirit which speaks for itself
