If I am correct, the salary scheme is mainly for SME segment. For larger enterprise, the pay can be much more higher, up to double, for the whole scheme, based on a same working experience. Anyway it is still good to see the pay is acceptable.
For larger corp., when economy goes bad, they will lay you off.
If in small firm, they will also lay you off but in a slower pace.
So once and for all, many IT people change their career.