You observe a correlation but not necessarily causation.
Technical jobs that are well payed and well respected are found more often in companies that produce a product or service that is sold rather than in companies that sell your time, whether directly or under the guise of 'projects'. If your time-sheet impacts the bill to the customer, you are the product being sold.
The reason to avoid the latter is that all benefits to you, either salary or equipment/working conditions, are seen as expenses that impact the margin on the rate, while in a product company they are far more likely to written of as investments into the IP producing engine.
Technical jobs that are well payed and well respected are found more often in companies that produce a product or service that is sold rather than in companies that sell your time, whether directly or under the guise of 'projects'. If your time-sheet impacts the bill to the customer, you are the product being sold. The reason to avoid the latter is that all benefits to you, either salary or equipment/working conditions, are seen as expenses that impact the margin on the rate, while in a product company they are far more likely to written of as investments into the IP producing engine.