I suppose it depends on your meaning of spoilt.
To my way of thinking, spoiling a child materialistically doesn't always directly impact their behaviour. I would say I spoil my DD. She's my only, her dad isn't part of her life and I want the very best for her. I spend a lot of money on her birthdays and Christmases, she does get a few treats (probably more than average), she gets new clothes and shoes as and when she needs them and not just on special occasions, she does a lot of after school classes and we go on a lot of trips/holidays, etc. I would spend my last penny to see her happy and well taken care of. I work extremely hard to ensure she never has to go without and so that she can enjoy every opportunity I can throw her way.
She is perhaps the sweetest, kindest, most well mannered, selfless child you'd ever hope to meet. And I don't say that in a preening, my-child-is-the-best type of way. I genuinely mean it. She's sensitive and loving and will worry about the world before she ever worries about herself. She is just a very sweet little girl. So my 'spoiling' her isn't a bad thing, because she isn't an expectant, obnoxious, demanding little brat. I would never have raised her to be that way.
When I hear the phrase 'spoiling a child' I think of it in very materialistic terms. For there to be an attitude problem present, I'd need to hear the word brat in there somewhere 
As far as the OP is concerned, when it comes to parenting (in any form), you'll find competition. It's unfortunate, but there it is. I've spent a lot of money on DD this Christmas, like I do every Christmas. I start with a budget, and it slowly gets put in a drawer never to be looked at again. If people want to judge me for that, they can judge away. As a parent, I'll do what I feel is best for me and mine. I have an extremely frugal sister who judges my spending on DD. By comparison, she spends very little on her children, but I have never and will never judge her for that, because it's not for me to say what the right or wrong amount to spend is. Everybody's different. It wouldn't sit right with me to spend so little. It wouldn't sit right with many others to spend so much. Ying and yang, ain't it? Why we can't all just be happy for each other I don't know... 