Business and technical ideas are totally different.
It may be technically simple, but in business, it can become another thing.
When a friend talked to me about how to convert technology into money, I did not really think that things should be considered in this way. My friend told me that a person's expenses should be charged based on his maximum output, because you have to pay such fees to make up for possible business omissions.
A person's computing cost, or a maintenance cost, should be compared with the other party's expected income, even if it is the same technical expenditure, the other party should also calculate the degree of urgency of the service and the cost of the service peer and itself. At this time, the technical service fee you get is reasonable.
This may also explain why different people have different benefits in different companies with the same technology, because different companies need this technology, or the output of this technical requirement will be greater.