Just a simple question and discussion, no complaining, just asking. From what you (as an AU user) have seen, do you feel that votes are more dramaticized on Meta? For example I see multiple questions with 10+ votes on the homepage, but on AU.. not so much, and if they are, they are oldies. Does anyone else notice this?
Votes on meta are a completely different thing than votes on main. Since they carry no penalty (for either caster or receiver) they are often given more freely. Most importantly, voting on Meta is very often just a way to express agreement or disagreement.
So, if you make a proposal I dislike, I will downvote it to demonstrate that I don't agree and wouldn't want to see it implemented. Conversely, if you post an answer on the main site that is correct but not my preferred approach, I might not upvote it but won't downvote it either. Not if it isn't wrong.
So yes, Meta voting is different and it should be different. Votes should never be taken personally but that is doubly true on meta.
Although I think terdon's answer is the main reason for the number of upvotes, I'd like to add a couple more reasons that help as well. And since you specifically mentioned the homepage in your question.
Questions on Meta aren't near as frequent as on the main site. So the questions tend to last longer on the homepage, which allows them to accumulate more upvotes. For example, at this moment, there are questions on meta's homepage that are over a week old, and the last active post was 8 hours ago.
Another reason is the "Hot Meta Posts" bulletin board that is shown on main and on meta in the right bar. Although not always, but questions that end up there usually get upvoted quite a bit.