Actually everyone has luck, it's just that everyone's luck is different. luck can be a decent job, big salary, health, family, and so on. The point is that luck is not just about wealth or work, because there are people who have a lot of money but are far from family and there are people who are together with family but live well. We can't look at luck from just one thing because this world needs balance. it's not possible for everyone to be rich and not possible everyone to be a professor.
You are speaking good. Labor person do work day and night and he will get success if he will make long term goal. If he made a short term plan and he only focused to work ,work and work ,he will not be successful because specialized knowledge of field is very important in life. A labor can be rich if he knows how to invest money and how much invest money. I saw who took start a very small but now they are rich person in our society. The reason is they focused on their knowledge,no matter how much degrees you have and no matters how much qualifications you have. But if you struggled everyday and you will do the work consistently and you will increase your knowledge of business and investments,you will be rich in future. The famous quote, Slow and steady wins the race ,that is true in real life.