If one defines success as true happiness that lasts, no.
If you want caregivers and to be around people who like you and actually care while you are aging and then old, I would say strongly that it is better to practice treating others the way you would want to be treated, with honesty and kindness. Or if you want to be around that kind of people (I hope everyone would, upon reflection). Or if you believe in God (for which I have many reasons that I find compelling, even "proof" sufficient to my personal satisfaction), or if one wants to play the safe side of Pascal's wager (https://en.wikipedia.org/wiki/Pascal%27s_wager).
Money is a poor companion compared to trustworthy, unselfish, kind people who know that you in turn can be trusted. (And my experiences with social security and medicare, as well as everything I have read or studied in years, including the outcomes of communisms, family travel and degrees, language study, etc etc, strongly bear this out--we don't want to rely just on institutions to care for us if we can have people who know us and who care, and whom we have trained by our example over a long time to be caring and have a service-oriented mindset of actual considerate love for others. For example, close and extended family, neighbors, and strangers. There is no real substitute.
Stalin, for one example, had "success" in terms of power, prestige, and something like adoration of the masses. But if what I read, as I recall, is correct, he died neglected and miserable in a pool of his own waste, surrounded by false friends who cared only when fear required it. And either way, I think the concept could be obvious.
If one just wants pleasure, power, and attention during your years of best health, and to fade & die after you can't maintain it, and thinks life is just the law of the jungle (dominate until you are dominated, rule or ruin?), then maybe you would consider that honesty and kindness don't matter. I strongly recommend honesty and kindness, treating others the way you would want to be treated, and a clear conscience for a truly happy life. Much more could be said. :)