What charisma is depends on the person. It is defined as ability to induce devotion in others and different people will get moved by different things.

Charisma is not an absolute and objective measure. Some people will find Trump charismatic to them, some people will see him completely opposite.

I personally find Warren Buffett very charismatic, some people will probably see him as an old and wrinkled guy who is boring them with stories they don't care about.

As investors are generally mostly interested in money, ability to get shit done and generate profits reliably IS charisma.