I know guys who save up to the last penny to try and achieve financial freedom. It's infinitely easier (and more efficient) to try to make more money than it is to, for example, not buy the occasional starbucks coffee.
As an example: I had the opportunity to take over a very nice corporate car of a friend at a ridiculously low price (for a variety of reasons). Basically I managed to purchase at half the actual value of the car -- it was a few years old but looked almost new and had super low miles. It was in perfect condition.
I could've bought and sold it on the spot for close to double the price I paid. But I'll drive it for a few years and likely be able to sell it for close to the same price I originally paid for it. Others go buy a new car, take a massive depreciation hit, and in the end spend tens of thousands more.
The expensive tickets are worth focusing on. Then go drink all the coffee you want.
On the other hand if you are already progressing through a career I suspect it's easier to trim spending than work further up the ladder.
The Starbucks thing is a red herring, most people overspend on cars, housing and food.