Absolutely! And in most likelihood, such a system will never be put in place, so you can sleep soundly.
Amazon could run very well without Bezos, at this point, solely through workers. Bezos at this point serves nothing but effectively leeching the wealth produced by employees. But appropriation of the means of production is not the subject.
Bezos being successful is not the issue. However, he is effectively an annuitant, and produces very little of value. This brings up the question of why does he deserve that money now? As he's been building the company, yes, eventually (and even then, his only contribution is capital. The rest of his work can be done by anyone else). Nowadays? I'm doubtful.
Secondly, this fortune would much better serve society as a whole than be passed through generations, effectively creating a lineage of oligarchs. If I have to choose between bettering the living conditions of millions or letting Bezos keep his net worth... I'm not going to cry for him.
The most important question is of course, how much should be taxed, and what amount of wealth is too much? Everyone will have different answers. But there are other solutions to taxation. Capping salaries and profits from shares to a factor of the lowest salary in the company, etc.
If one of those companies is successful, that you have managers upon managers doing most of the work for you, yes, you would be a leech.
Good luck on that house, however. I know from first hand experience that it is a tough thing to do. Make sure everything's done properly.