What is ethical hacking?

Are ethical hackers ethical? Where are the ethics on helping companies grow bigger and powerful? Shouldn't every individual in this planet benefit from technology? It is ethical to perpetuate social inequality in consequence of power centralization?

Hackers who work for companies are not hackers, they are just bootlickers. True hackers stand for the true hacker ethics as described in https://www.ccc.de/hackerethics