Certainly, and to that I would say
we do that inconsistent with Nihilism. That reflects on a point mentioned earlier about 'overcoming Nihilism.' What I would say is rather it is
undercutting Nihilism to accept 'there is no value' and then decide to instill something with value for your own satisfaction just because you can. But it's entirely human to do so.
I'd say this is just the same as there are Christians who sin (you'd think if they accept the philosophy of the Christ they'd act according to it, but they still do things which are inconsistent with a belief system they accept). I just put that down to the fact none of us are perfect, we all try to be like our ideals but often fall short and fall back on old habits in that neverending process of creating oneself.
Even if we accept Nihilism, or Christianity, or whatever it is, as a truth for us, that doesn't mean we'll fully change our habits and beliefs from those we've acted upon unconsciously for much of our lives and always act in accordance with the new ideal. Philosophy being so abstract from practical situations many people may simply act as they always used if they haven't taken the time to see how to value and approach an old situation from the perspective of the new belief system they would be happy to live by.
and perhaps I was too careless in my wording earlier, I should have said 'ones own happiness' or 'the happiness of ones own life' rather than just 'one's life' because, to put Nihilism aside and address your point by itself, we may value things above our own existence, even to the extent of risking our life for these things we value, but we do so because to do so makes us happy (or, of equal meaning, we imagine
not to do so would make us feel remourse/guilt/sadness/self-loathing/regret/etc). It's that happiness which is what we value above all things.
My most succinct proof of this value distinction is that you don't step in front of a car trying to save your cat even though you may do it to save the love of your life, because though you value your cat, you value your life and the happiness you imagine it can still continue to have despite the death of that cat you do nothing to stop, where as you imagine if you do nothing for that lover (which you value for how much happiness s/he can bring you) the happiness you value will be at serious risk (lasting guilt/regret/etc.) and we may imagine we would at least die happy knowing we'd rescued the one we loved or at least tried our best, so in any case we evaluate the act by our own happiness. -- you only risk your life for someone else if that someone else is tied up in your own happiness, so it is in fact your own happiness you're looking out for and that individual you're protecting represents just one source of that which you don't want to lose. (it's not a nice way of saying things, basically saying 'there is no altruism', 'people are means to our ends' but I've been hard pressed to find a good argument for altruism, but there are plenty of people who believe in it so the idea I just tried to explain may be entirely wrong).
Thanks for the welcome fellas, I've been signed up for the Hypocrisy forum for months and only just noticed this board, I'll definitely be keeping my eye on it