You can be an intelligent investor, and get success as well as great profit with Bitcoin investment if you have a proper capital management and investment strategy.
Your capital should be the money which you saved as your discretionary income, If you don't set up an emergency fund and making sure that you have a good discretionary income, there's no way you can be able to manage your capital. You should have know by now that bitcoin investment is quite different from those type of investment that you can easily manage your capital even when emergency fund is not in place, why most business still get affected.
Then in investment management, you don't need to purchase bitcoin aggressively, it has nothing to do with your success. A good strategy is invest what you afford to lose, with capital you feel most comfortable for your investment.
You're trying to make bitcoin investment look like trading or gambling that one is always advice to go with the amount that he/she can easily afford, rather the statement there is that (you should invest with a certain amount which you know is suitable for you by using the DCA method)
Investment success has nothing related to your investment capital like whether it is big or small. If you invest in a right asset with good strategy, you get great investment ROI, and that means your investment success and profit.
Yep I think you're making some sense, is just as it is been said that we should cut our clothes according to our size. So everyone will always want to go with a suitable amount, so as to enable them sort thier day to day expenses.