Intelligence is a term that must be positive since it is believed intelligence is helping mankind..?

.. by bringing about better lives and futures for all. If not all people are enjoying/ reaping the fruits of intelligence then why should the definition be universal? And then, if supposed intelligence is creating too many negative side effects in the lives of most people (at least indirectly), then the meaning of the word must be redefined. So, in this day and age, what does one mean when one speaks of intelligence and sets apart oneself as intelligent as opposed to another? And doesn't it take intelligence to survive in any given enviroment?