Oh, no doubt. Unlike the Royal Navy, his army didn't have the legal right to form press gangs and just round up a force from a given neighborhood. They had to entice men to form up, march off and get killed. Usually that meant their prospects at home were even worse than dying in ranks overseas...
Don't forget the drink.
In the days before the industrial revolution, the invention of the flushing toilet, and the widespread adoption of the motor vehicle, life was pretty vile. So the Europeans responded in the only sensible way, and spent every possible waking moment as drunk as newts.
But despite the fact that you could be (as the sign in Hogarth's 'Gin Lane' says "Drunk for 1/2d, Dead drunk for 1d"), many poor people simply didn't have a penny a day to spend on such essentials as gin.
For many, the solution was obvious - a soldier was issued (in addition to his pay) half a pint of gin or rum, or a pint of wine, or five pints of beer. Per day. (These are imperial pints, about 1.25 modern US pints).
Of course, once he drank his rations, he still had his pay to spend on more drink; and on campaign, the army 'lived off the land' - which often meant drinking a tavern or cellar dry, with no thought to payment.
A very large fraction of Wellington's army would today be diagnosed with clinical alcohol dependency, and they were easily recruited by the promise of plentiful free drinks.