While I would agree that politics and economic circumstances within a society play a great deal in shaping the language that we use today (and the language that used by the writers of the past), this does not necessarily mean that their influence is bad.
... English language beyond his days. There are several examples of these deceptive techniques used today; things that would make George Orwell turn in his grave. Politicians accomplish this vagueness, inaccuracy, and misconception in their language by using euphemisms, doublespeaking, dying metaphors ...
Politics and the English Language: Questions on Rhetoric and Style
Orwell notes that writers of modern prose tend not to write in concrete terms but use a "pretentious latinized style", and he compares an original biblical text with a parody in "modern English" to show what he means. Writers find it is easier to gum together long strings of words than to pick words specifically for their meaning. This is particularly the case in political writing, where orthodoxy leads to a lifeless imitative style. Political speech and writing are generally in defence of the indefensible and so lead to a euphemistic inflated style. Thought corrupts language, and language can corrupt thought. Orwell suggests six elementary rules that if followed will prevent the type of faults he illustrates, although "one could keep all of them and still write bad English".