I agree with you and want to expand on:"People don't really understand just how much a billion dollars actually is."

Billion and it's larger cousin, Trillion(etc and so forth), really are hard for the human mind to grasp.

From: https://betterexplained.com/articles/how-to-develop-a-sense-...

One strategy is to rescale. So, if I am worth 1 million (I wish!) then someone worth 1 billion could treat things as though they were 1000 times cheaper than me. If you could get a $1000 per night hotel for $1 per night, that might change how you live. Further examples left to the reader.