It's not that one-dimensional . Their company does have resources that enable them to do things you and others cannot do.
You would be right if you owned a controlling interest, but you don't. Because you don't, all the profits of the money-making businesses go where Larry and Sergey want them to go. That's not (necessarily) going to be your pockets. If you owned a controlling interest, you could throw them out if you're unhappy with their performance as capital allocators, but you don't and you can't. So those profits are worth little or nothing to you, both now and in the future, because you aren't entitled to receive them.
a) Neither executive nor any member of the board has any concept of fiduciary duty.
b) They can keep any mismanagement out of audited financial statements.
You invest in a company assuming it will increase its value over the time you hold your fraction of ownership. Parent isn't saying you're entitled to dividends, but was observing that the decision to buy Alphabet stock will likely mostly be made on the expectation of the money-making businesses continuing to grow, and only minor-ly on the hope that one or more of the ventures takes off and significantly increase company value.
Perhaps I'm reading it wrong but I didn't see an expectation of dividends in the parent's comment.