Answer and Explanation:
As shown in the question above, the advancement of engineering has allowed it to be cheaper for a company to promote a safe environment for professionals than to pay a higher salary for the risk they run within the work environment. This causes companies to modify the offer of risky jobs, as a way of reducing expenses. However, due to wage compensation, the demand for these jobs remains high, because professionals are attracted to compensation. To stop this demand, companies promote a compensation differential, which modifies the demand curve by decreasing it, which means that fewer people will look for these jobs.