Yes .... yes ..... !
But what you're doing (subconsciously) is not 'giving yourself more leverage' as such, but you're freeing up your arms. Remember the spiel about arms being little steering dampers? This is
particularly so when they're quite straight. You, leaning forwards a tad and crooking your elbows has freed up your arms and taken out the resistance in them - that's why your steering suddenly feels free-er
You are also (again subconsciously) putting just an incy wincy bit more weight over your front wheel. What does your body weigh? 85+kilos? And of that your torso and head will weigh, what 60K ?? Go and pick three 20k olympic plates up in your gym!! (you wont - you won't be able to pick 'em up..) Imagine balancing those 3x20k plates somewhere on your bke - imagine moving that load and how by re-distributing it by just a few inches it would have such a dramatic effect on the feel of the bike.
You have worked out for yourself, by the benefit of play, that by crooking your arms and pitching yourself forward just a few inches it instantly feels better. That's down to a more planted front end (that just feels better)
and flex and freedom in your arms.
Good!!