Many bettors bet more and think that it will magically increase their chances of winning. No matter what, gambling is still a game of luck. Betting bigger may bring short-term excitement, but inevitably leads to bigger losses and regret.
If you bet with big amount for short term excitement, it can become a life time regret if you lose that money. Better no try such experiments which may bring so big financial losses that may take months and years to recover and in some cases, you may never be able to recover those losses if your overall portfolio is small.
Gambling should remain a game, as you say. It should never become a lifeline or path to success. Those entering this high-risk field must act properly. There is a lot more to life than the deceptive belief of get rich quick. 
No matter you treat gambling as a fun game or a game to make money, always keep money management in mind so that you won't lose big. As long as your whole portfolio is intact, you will get fun plus money from gambling.
Gamblers are required to make a risk management plan and then stick to that plan.