That's the opposite of what those words mean. Profits are dollars that stay with the company. Dollars that leave the company are expenses, some other company's profits. I don't find redefining profit to mean its opposite enlightening here. They're spending cash now in hopes of future profits -- that seems clear enough in plain english.
Money not spent is money that isn't working for you, but instead is just sitting in reserve, at best accruing interest. Amazon is betting it can get a much higher return, and so far, has been right.
"profit" and "money" are two very different things.
"profit" is how much you are making at the end of the year, this is to be reinvested if you are efficient (as you suggest is good, i agree)
"money" is the what is sitting in the bank, not being utilized.
Would you say that a company who is breaking even is utilizing their cash properly? no, they don't have any cash to utilize, therefore profit and cash are different things.
Right, but presumably, the company that spends all it's cash gets something in return for all this money, ideally of equal or greater value to said company than cash spent.
Management (jeff and co) elect to spend cash on bettering the position of the company, (and thus keeping the wealth within the company) opposed to just sending money to the owners (spreading the wealth to stock holders/entities external to the company)
No, dividends are dollars that leave the company. Profits are an accounting measure of how much the value of the company increased. Since these accounting measures don't try to fully measure future income, heavy investment will appear unprofitable in accounting statements.