Some countries will always have a lower corporate tax just to get companies interested, not everyone is USA and have enough money to print trillions of dollars worth of money and end up being in the profit anyway, so many nations drop the corporate tax to minimum, even zero at times to attract money from other places. Hell if I had Facebook in my nation, I would charge them zero money for being here, even help them pay for some stuff, why? Because that would mean there would be a company worth hundreds of billions of dollars in my nation and that profit comes into my nation from outside, and they are hiring tens of thousands of workers, and they are getting headquarters, basically there are tons of things I can list that the nation would benefit from.
Long story short corporate tax can never be the same in every nation, some poor nations will try to attract rich companies one way or another.
Each country acts by virtue of its own principles and its own capabilities, and if the capabilities and principles allow, then it is possible to reduce the corporate tax. Another question is that the current multinational corporations are a very complex phenomenon and a simple reduction in corporate tax does not mean the transfer of the parent corporation to your jurisdiction along with all the staff. The question is very complex and ambiguous, because let's say the same Facebook just opens a nominal office with a minimum of staff for the sake of paying taxes, and the main activity will still be conducted in a convenient country.