But when banks seek to exploit their position and make a quick killing, they can cause enormous damage.
Caliphate-wide rules also forbid Isis members from being involved in state investments or to "exploit their position... and work in the state for personal interests".
The economists said Brussels and the IMF, which were the main creditors to Greece, also exploited their position to make unreasonable demands.
"We say it provides the club with an almost unfettered opportunity to exploit their position at the expense of the footballer.
There are many excellent male managers in the sport who are there through choice but there are others who exploit their position of power and authority over the women they coach.
However, the result is often unhappy contractors, inferior services and future problems such as an increased risk of legal disputes where suppliers exploit their position after being forced to concede low prices.
At the same time, Taliban leaders can still exploit their position as moral authorities — Taliban means religious students — which gives them overarching power over the various commanders, bandits, smugglers and insurgents fighting around Afghanistan.
The corruption risk is that those who are powerful or wealthy enough to understand how government works or to engage the services of someone who can navigate the decision-making maze on their behalf will exploit their position to their advantage and to the detriment of the public interest.
The home secretary told the Police Federation's annual conference that there was still evidence of too many victims being let down and "shameful attitudes" on the part of some police officers, who even exploited their position to develop inappropriate relationships with domestic abuse victims.
Managers exploit their position for speaking engagements, public appearances and other commercial activities, and Allardyce is not the only one who would be tempted by £400,000 (eventually bumped up to £600,000) for four "meet-and-greets and nothing else" in Singapore and Hong Kong.
The allegations are the latest in a stream of abuse claims made by women and children in the country which suggest the troops – who were sent to protect civilians amid violence between Muslim rebels and Christian militias in 2013 – were able to exploit their position to target the vulnerable.
