I can tell you clearly here, first of all, you can't educate your children to be mercenary, because their growth is greatly influenced by the family environment. Since you asked this question, it is obvious that neither you nor your family has a mercenary atmosphere. In other words, education is not just a matter of language. This requires environment, contact and experience. On the other hand, if you and your family are both mercenary, then you don't have to be so entangled in asking questions.
Secondly, please don't subjectively think that it is good for children to cultivate their children for profit. Because everyone has a different definition of the value of living, don't just define people's life goals and efforts on the word "profit", which will make your three views very narrow. As the saying goes, if you don't do anything wrong, you are not afraid of ghosts knocking at the door. What is important for people to live is peace of mind. You can find anyone who has a long life. Their hearts must be quiet and their manners are comfortable. A person who is stressed all day and has an extreme mentality will not have the carefree state of a long-lived person. Don't make yourself too tired. You can think that mercenary can make you gain a lot of things, but at the same time, you should also think that mercenary can also make you lose a lot of things, such as sincere friends or relatives. Whether you can accept losing these feelings, you need to think it over.
In short, everything should be measured. In this society, you can't love money at all because you live in poverty (unless you have a mine at home). But it is not enough to love money only, and it is bound to make you lose a lot of human feelings. We must pay attention to the fact that when we are alive, we must feel at ease.