So let's say your bills are $700/month. Let's take the approximation of 1 month = 4 weeks to simplify this. You can net $100/month, or you can net $900/month. Which will help you meet your goals faster?
Now let's say you work 60 hours per week. Now you're netting $1700/month. That's going to once again shorten the time it takes to meet those goals, but it's not nearly the difference it was before.
Let's say you want to save up $10,000 for a down payment on a car. At 20 hours/week, that will take you 100 months (8-1/3 years). At 40 hours/week, that will take you 12 months, and you'll have some remaining. At 60 hours/week, that will take you 6 months to save up, with a little bit of change leftover.
This is assuming that your goal is finite. Let's say your goal becomes more nebulous. For example, you want to save up for 5 years to buy a car with cash.
- 20 hours/week, you might be able to buy a car for around $6,000
- 40 hours/week, you might be able to buy a car for around $54,000
- 60 hours/week, you might be able to buy a car for around $102,000
You can have a better goal with more time invested.
In my opinion, this is a better analogy for martial arts training. Do you want to have a used 2005 hatchback? How about an entry-level BMW? How about a top-of-the-line Corvette? This doesn't make someone impatient. It means someone has higher standards for what they want to achieve.