Even though the talent and skills are acquired by hard work, the luck part is always distributed randomly and equally to everyone so there is no chance of doing something to improve luck part as in skills and talent one can improve it day by day by practising regularly. I always go with the skill part because I never had any jackpot with luck
Luck and equality are incompatible things
In fact, the very idea of luck is diametrically opposite to equality. And it has a very simple (let's call it scientific) explanation. Truly random distribution (and luck fits there perfectly) has nothing to do with uniform distribution, which many folks erroneously consider as the same. The lesson to take home is that some people are overall more lucky than the others (that's basically the whole idea behind luck as such). But this doesn't mean of course that they will be ready to use the opportunity if they strike it lucky