I assume by fineness-ratios you mean T/C ratio; by span-loading you mean the ratio of span to chord; and thrust loading you mean T/W ratio?
Jane-Doh,
not exactly,
Fineness ratio, is more about the physical cleanness of the wing it concerns boundary layer T/C is the thickness ratio
Span loading, is the weight divided by the span-a measure of how much load is distributed along the span the
T/C is the thickness ratio...important when chord changes as in flap deflection
The maximum wing load or the maximum weight to ever be carried by the wing is carried at the stall...and is dependent on how far above the stall speed you are if you are at Vs then only one g can be pulled at 2Vs then four times the load will be imparted at the stall at 3Vs 9g...etc...
I hope that helps...
One can always ask the opposite question: Why do most small aircraft have such low wing loading? Their slow approach speed means that crosswind or tailwind landings are very dicey, and the large profile drag of a big wing limits their top speed. How profitable can a light transport aircraft be with its weather limitations and slow cruise speed?

4th Jan 2011 07:56
Great Question
