Cause there are people with rather high ambition, but the ability they have might take them longer to realise their ambition, and so along the way it can make them feel frustrated.
The frustration can be a curse though, as it might temp them to do anything to realise their ambition/dreams/goal.
On the other hand there are people without that high ambition, but are very talented or skillful, and will be envied even in a good way by others who would like to have their talents and will be considered a shame that they don't make the most out of their talents.
But then again, maybe with some good guidance, they can have more ambition or at least a better way to make use of their talents.
Another example is people who are very ambitious and not very significantly talented (I'm not saying not having any talents, only the standards they have is just normal and not so significant), yet they are probably happy in a way cause they know their place and are content with where they are now and then.
Last but not least, of course there are people who are ambitious and also very talented and know exactly how to make good use out of their skills and talents to realise their dreams and to be successful.
Thus, they are happy realising that they are making their dreams come true and and we probably hate them for that
Do you reckon being ambitious is a virtue or a curse?
Are you ambitious?