exaltly if an investor has a strong back up funds, he or she can buy bitcoin aggressively when there is a dip, but this buying of bitcoin aggressively when there is a dip in the market always favour the rich investors, because they have other sources of income and the capacity to handle any emergency when it occurs.
But for the poor investors with low capacity I don't think buying bitcoin aggressively when there a dip will favour them, because they might intend to buy bitcoin with what they can't afford to loose
well it depends on what you describe as poor or rich. each an everyone has there level or limit at which they can afford things, and they may see it as being advantageous over the other. for example if bitcoin fall from $109k to $80k and Mr. A bought bitcoin worth of $1m and Mr. B bought bitcoin worth of $100k at same dip, and Mr. C also bought bitcoin worth of $10k each at lump sum, each of them will be glad they bought bitcoin at a low price because of the dip in price without thinking if anyone may have bought higher or not. so in conclusion everyone will invest according to their capacity or what they can afford to lose. because the way you sounded makes it look as if its only the poor that can invest with what they can afford to lose.
which may lead to early selling of their bitcoin investment when there is an emergency.
selling bitcoin too quickly to get back the fund invested is not always because of emergency but due to the fear of missing out, and selling too quickly is not only for the poor but for both poor and the rich. they do it mostly because of fear of uncertainty.