The tragedy is that a Johnson government could have been like Macmillan's government in the 50s, ie, socially conservative and economically interventionist to achieve economic prosperity for all.
Since 1964 the UK has had governments that have been either economically interventionist and socially liberal (Wilson, Heath, Callaghan), non-interventionist and socially conservative (Thatcher, Major) or socially liberal and non-interventionist (Blair, Brown, Cameron) so this older model is forgotten.