Wage increases in any sector are likely to lead to price increases, including the food, energy and housing sectors you mentioned. Increases for the already wealthy tend not to find their way back into the economy. We need to make them pay their fair share in tax. 1/2
Average inflation has been arround 2.5% or less for last 20 years. Even without losing I can guarantee stocks have been a bit higher than that. Even Santander bank offered 3% for about 6 of those 20 years. Show me your evidence for shares to have been below inflation.