Using gambling winnings to investing business that will be yield profits is a good way to use money to find money. We need to keep our money into action if we actually want to be making simple bets while we keep creating different investment opportunities for people around to work with us ....
making a business or reinvesting the gambling winnings is a wise and most correct thing to do; in that way one can expect continuous profit from it which can then be used again, whether for their needs or their gambling again. this method is better to do than just using their gambling winnings for consumptive things which can spend all the money they get.
Yeah I agree with you , the best way for one to use his win especially when the win is huge is investing in some business outside gambling that may help with steady income, because if go into gambling with that same win ,the chances of you losing it all is higher than you doubling that money , because any wrong move you will lose it all.
When comes to business you don't have to rely on luck only but rather a good planning, to improve the business time to time , at then you will no longer gamble for the money alone but for the fun in it.