many men have a clever head. but they don't have a good job. i think the people who in a good job not everyone are clever. so don't belittle yourself. you will get a good job.
It depends on many aspects. Even if a man with high IQ, but it doesn't mean that he will have a high EQ. And EQ is very important for our daily lives. Perhaps a high EQ one is much more successful.
I love China