Using these kind of game metaphors just shallowly rationalizes something of far more importance, IMO. Legal or not, a country was worse off because of his direct and deliberate actions.
You're talking about the Chancellor of the Exchequer who decided it was rational to keep pouring money into the other side of the trade Soros was making, I hope.
The country was worse off because its fiscal policy, determined via politics, amounted to a completely untenable long term position. An epic disaster was the only possible conclusion.