Many have killed for it and many died in search of it. Power is unlimited, it does intoxicate, power can lead and mislead the seeker. There is nothing wrong in seeking for power but the modality and channels at which the power is sourced really matters.
People and power tends to be misused, especially when there is comparative advantage over the other person that the power is been used upon. There is no limit to the extent of power used.
However, it is advisable that people should make good use of the power to benefit the course of humanity.