Luck can influence your career choices in many ways. One factor influencing career choices is connections. Connections are an important part of attaining a job. Having a recommendation helps for a good first impression and increases the likelihood of attaining a job with that employer, and gaining that recommendation is based on luck. Who a person meets is not entirely up to them, it is luck that allows them to meet certain people.
Luck is something generally used for Powerballs and things. Or wrecks and accidents... But if you need a spot of luck for your career, then it's a different topic. You first have to put in hard work and dedication. Then, you will be lucky to have the job.
