its the weight and unbalanced rims that cause deterioration of the suspension. China alloys that are available in market usually have very high weight due to bad quality alloy used and poor construction.
Use of light weight alloys with good quality tires don't damage your suspensions. Just make sure don't go too much over sized.
Also depends on your driving style as one should be careful while dealing with bumps and ditches.
My 2 cents.