Financial management is important basically in business but I don't see it as the ultimate because if you have it and failed to utilize it wisely and join with others tactics required, it will be difficult to succeed, it's just an edge in line to generate and sustainable financial stability but in business growth smartness and some tactics which involves consistency, or trending and demanding business, that can bring more customer attention.
It required knowledge to know which direction you are going either good or bad, and it will not allow you to fall into losses when you have the knowledge. This is what some investors don't understand about financial management. There is no way you will have financials management skills and you will be lacking how to make profit from investment, because you suppose know when to buy and when to sell to gain profit that will force you to add other coins to your hodling. The Strategies you deploy in your investment are the major power that will push you to double your profit, because that is what some professional investors are using to make different profits from crypto investment
You don't need to just understand financial management without you know how to grow higher financially in a business, because financial growth will make you not to be in the same financial level with those who don't have the knowledge of financial growth.