As everyone knows the goal of betting is to get the largest amount of money ,
Not always to win, sometimes for fun too.
knowing that the risks do not change whether you bet a large or small amount,
The risk changes, the money you are using to bet and willing to loose is what you are risk. A bettor who uses big amount in betting is risking big, unlike a gambler using a small amount of money who is not risking much financially.
sometimes the amount you bet with is your capital, and this drains you of your time and money, and perhaps your work and daily tasks.
It takes some few minutes to place your bets if you bet online, I do not really see how that drains you of time and can hinder you from other daily tasks.