Namaste Visalakshi ji,
Whereas in the world of schools and colleges, one's intelligence determines the level of success and fame, in office situations, it is purely one's work ability/hard work that determines success. I have observed this with many people. Even those of average IQ can succeed, say as a Programmer, if they are able to invest that much time for finishing the project within the deadline. I have practically observed the managers in many situations just brushing aside values such as code needing to be according to standards, etc, if they deem the worker as otherwise hard-working able to work extra 2 hrs (unpaid) as and when needed, and will be available to work in the weekends too. Even those of average IQ, over exposure to the code for sometime, pick it up and therefore hard working ability far outweighs the merits of a top IQ, except for advanced scientific applications. This is my observation.
Cheers,
Jayashree