No, it just means that during the period after you stop working at the old job but before you can start working at the new job, you are paid only your base. This can be a significant reduction in total comp in industries such as finance.
I think everyone should make 2-3x the poverty level income (we can debate exact numbers), and everything after that is bonus. So long as the company pays a bonus most years it means in a bad year you have enough to live on and don't need to find a new job, while in a good year you have a nice bonus to buy nice toys.
In finance you make more money, but work more hours and have more stress per hour typically. Still probably a good deal, but it's not a Pareto efficient deal.