For me it is required to be a master of both things like of course you can not have experience if you are not going to try and some people would think it's a waste of their time if they are doing what they know already like repeating their work over and over again. So it should be in a balance.
Those who lean on and go on with their current life, are not smart, they are called lazy! It doesn't have any relation with Smartness. A smart person will always try for betterment and will try to take their lifestyle to the next level. But only a lazy person, will go with the flow.
Also I believe that a smart person needs to be strategic as well, because planning is a very important thing to live a good life. If you can't plan your actions, you may suffer a heavy loss in any stages of your life. So a smart person needs to be strategic to get the best return from a minimum effort. That's why, in today's modern workplace, hard workers remain as a labour where the smart workers become the Manager.