Because it's the same way unfullfilling as a drug addiction. Sure you have miles instead of needles and dots on the suit instead on the veins, but in the end you miss the one thing that matters-passing a legacy, influencing other life's in a good direction, for a socially acceptable Trainspotting reenactment.

I am not sure I fully agree with you, but you put it beautifully. You have a real way with words.

Excessive desire for money and power alone is generally viewed as anti-social and possibly even pathological.

Of course, figuring out what is "excessive" may be contentious, especially if one also has other good intentions that come along for the ride and help balance things out (e.g. philanthropy, strong ethical boundaries).

If you look closely enough you would see that the attainment of wealth and power definitely does not bring happiness. In order to know this an individual needs to experience both ends of the spectrum and have the ability to clearly introspect and compare both experiences.

There's a big difference between wanting money & power, and "hoarding as much" as possible, as I said. It depends on your value system, but most people place a non-zero value on showing love to others & bettering the world, and a money-hoarder doesn't do that.

What makes it intrinsic you think?