I'm sure you're way more experienced than me, my friend, but it puts me off when I see oil floating on, or seeping out of a dish. I tend to avoid TAs and restaurants serving such fodder.
For me - and it's only my preference - I like to use enough oil to cook the ingredients and leave a relatively oil-free finished dish. It doesn't take a lot of oil to fry spices/onions etc - they just need to be coated really. The same with a base - just enough oil to cook the ingredients results in less of a slick when you serve it.
But hey - each to their own and all that
