Personality and success.
Consider for a moment that ones personality is shaped by social influences. First through family members and then by interactions with frameworks of wider societies. Consider that personality is broadly catagorized into type a and type b personalities, though I won't go into these methods of catagorization any further, there is another system that is used for grouping personalities.
They are
Openness to experience
Conscientiousness
Extraversion
Agreeableness
Neuroticism
It is possible for two very different people to produce the same outcomes of catagories until you delve deeper into the dynamics of personality.
Think of having a lazy person that sits around drunk most of the time and does not have the most agreeable of personalities, the other delves into the difficult world web development and dabbles with software design yet is also not the most agreeable of people, they are very different people, should society prefer one to the other.
Now, consider the differences between land and coastal designs. What is under the water? In areas where the are high levels of sediment transportation this might not be visable without the equipment of profession, the issue therefore might then be social standing, prehaps what another person does is ponder ways of preventing sediments reaching areas of natural beauty.
personality should play a role in a persons interests or talents and also their ability to succeed or fail at what they do. Atleast it will have an influence on success.
This post focus' on the on personality, social class and compatability of tasks at hand.