As to being non-native English speaker, you may not be able to create perfect wording - that's fine, but if knowing this you're too lazy or entitled not to speel check it at least -it has nothing to do with knowledge but just plain negligence or ignorance.
This has to be intentional.
I would imagine that most of us non-native speakers would rather not bring attention to what is easily perceived as a weakness. We try to blend in.
Why is it so extraordinary to ask people to pay attention to what they are doing. Specially when going for something that supposedly interest them?
Imagine you are on your first date with that boy/girl that you DIE for. Would you take care of every detail ? Would you groom yourself, comb yourself even though you are not a barber or a stylist? Now THAT is showing interest.
Would you _go to_ a barber or stylist, or at least have a friend give you a once-over to make sure you look your best?
That's what you should do with your resume. First, second or twentieth language doesn't matter, care and attention to detail does.